I work as a porter in an Emergency department in a hospital in Ontario. This story relates to my job so I have first hand knowledge about everything written here.
So to start off anyone is not technically the hospitals problem until they get in the doors of the hospital. Horrible rule but I did not make it. Now with that being said it is never enforced where I work. I get patients in and out of their vehicles every shift.
The problem is that you will run into people who say; "that's not my job." And technically they are correct. Or their are many workplace injuries that happen with frontline staff and a lot of the time if a nurse has an injury they get put out at triage. It is a less physical job than being on your feet for twelve hour shifts. If someone comes up to a nurse who has an injury to get someone out of their vehicle they may say that they can't but they will find someone who can. I swear that people will just hear that they can't and not hear the rest. Another thing is that patients/visitors do not really know what is all happening behind the scenes. As a porter I am the one get patients out of vehicles but my job is you pretty much have to be a jack of all trades. We clean stretchers after patients leave and put clean sheets on, mop floors, take patients upstairs when they get a hospital bed, take patients to and from their tests and many times have to help lift patients on and off of x ray, CT scan or MRI tables, take dead bodies down to the morgue, release dead bodies to funeral homes, do compressions for CPR, if any patient codes in the whole hospital we go and do CPR, any calls for violent patients we go to, get blood from the lab for anyone who needs blood transfusions, plus many other smaller jobs. Needless to say I have to multitask and even though I work in the Emergency department does not mean that I am even in the department half of the time. So I can not just go and get a patient out of a vehicle at that very moment. If I am doing CPR then I may get stuck in that room for up to an hour or two.
One more thing to keep in mind is that getting patients out of vehicles is very tough to do. So first off with this article the person had a sore back. Now me not getting the whole story a lot of the time you do not know what is exactly wrong with someone. Meaning that if they had a bad injury they may have a broken back. The last thing that I want to do is to injury someone further or cause paralysis. So calling for EMS can be a better option. Another thing is that it is very hard to get people out of cars. Think of this very common situation I deal with;
Grandpa who is 80 calls his son who is 50. Grandpa says that he is not feeling to well. Son goes over with his wife to see his dad. He decides that he will drive him to the hospital. They would call an ambulance but they do not want to pay the fee for something that they can do and grandpa is not dying just feels really weak. Now they load grandpa into the backseat and grandpa weighs 250 pounds. When they get to the hospital they try to get grandpa out but he is too weak to get up from the backseat. Now they go into the hospital to inform us that they need some help. Now you have no clue how hard this situation becomes. You literally have to go into the backseat and manhandle the person. You have to pretty much lift them out and get them in to a wheelchair. It is not like you can stand in a backseat to get more leverage. Also it is not like you can get many people in there to lift. It is a very hard job where you can not do it with good body mechanics. Once again EMS are better trained to deal with these situations.
Lastly I can relate to this story from the patients point of view. I have had a bad back for about eight years now. I have had back spasms and had to go to emergence by ambulance. Yes the spasms hurt like hell. But the problem is that it is all in the muscles. For some reason it is just very prevalent in lower backs. He did not go for any tests because he very well did not warrant any tests. X-rays do not show discs and only bone. If the patent did not have anything traumatic happen to him he will not have any breaks or fractures. CT scans do show discs but not very well. The best test to have done would be a MRI. The problem is that MRIs take a much longer period of time to do the tests and it can be a long wait time to even book a test. If someone has lower back pain and requires surgery they would have pain/numbness/tingling going down one leg and would pee or poop themselves. I have had spinal fusion surgery myself a year and a half ago so I know those side effects. Now if that patient did not have those side effects and just a really sore back then no tests really should have been necessary.
All in all sorry for the long read but I know both sides of this story. I personally have never said no to getting someone out of their vehicle unless I was doing CPR and just could not do it. But with that being said it has happened where I work before.