This isn't easy to write so I'll try to just say certain *points*
His mom & dad finally spoke to the main Dr and he said
Steve is not responding as well as should be [should be? after being hit by a train?] and not responding to "directions"
Although he appears to be aware of people around him they are not sure if he knows who we are.
After a month [almost] it's basically "what you see is what you get".
They should start thinking of a nursing or rehab institution for him.

I did have a wonderful talk with our PT friend EmilyTheSpoiled/Cheryl. She and I visit and she is in the health care field and she said that moving him out of the Hospital where he is, is a prudent thing to do. His immune system is down and he actually will be better off in another facility. There are some options. I am checking out NIH for Clinical Trials or other resources. Poor Steve has no insurance or assets and his folks can't cover all this.
I have phone calls and emails to make to try to find as much info as I can.
His mom & dad are elderly and understandably too distraught to "chin up and go on" right now. Thank you all and updates will be forthcoming. It ain't over till it's over. It "ain't" over yet.
L