americans are funny.
If you fell in their store, why do you expect them to pay your medical bills?
What if f you tripped over an exposed root and fell outside, on american soil, would you expect the goverment to pay your bills?
I do feel bad for you having to pay for your own medical bills, seeing as I am canadian, and healthcare is free. I cant imagine having to pay to have a broken arm repaired. that just seems rediculous.
But in consideration of your complaint regarding your accidental shoplifting, wether it was an accident or not, you still stole from the store. They have every right to ban you, and you dont have a leg to stand on filing a complaint against them because you dont know how to walk.