I'm so sorry to hear about your crash. I was hit by a truck in May and I wholeheartedly agree with the advice to talk to an attorney. The driver's insurance quickly replaced my bike, but starting ignoring me about the medical. I finally talked to a lawyer and things are rolling.
I'm still off the bike since an MRI two months after the crash showed a fracture (that did not show up in x-rays the night of the accident) as well as cartilage damage but I'm sure that you can ride on a trainer right now if you either sit up straight or only use one hand on the bars. I wouldn't hit the road again until your doctor says it's OK, though.
Take care and I hope you feel heal quickly.
Susie
"It never gets easier, you just go faster." -- Greg LeMond