This friend is right. The police man is no doctor and definitely has no right to say if she is wounded or not. Find a lawyer and fight for theropy and medical treatment for your wife. Good luck!
the first thing you should do is calling insurance company, and I heard Johnson is not known as a good one. but I still think it's your work to deal with johnson not police or others. good luck about the towing company, since you have already made the deal with them.
sorry for so little information. but you gotta fight this, come back and ask for help.