Dan, my sincerest wishes for a speedy recovery. I'm going through the "light" version of what you're going through, I was hit broadside on Sunday by a car, and it sucks. But, as you've probably heard a throusand times in the last week, you're lucky to be alive. Sounds like such a cliche, but damn if it isn't true. Every time you think you can't take it anymore, or start feeling overwhelmed by it all, just remember the alternative. The alternative to walking in a few months is to never walk again, the alternative to all that pain you're in would have been to not feel a thing...ever again. You've got the important things taken care of, the most important is the good bunch of friends and family looking out for you.
I'd offer to help, but our injuries don't compliment each other, my right side is wiped out, if you had wiped out only your left we could have leaned on each other and it probably would have looked somewhat normal. You know, like when you put two people who talk to themselves side by side, at least they look like they're having a conversation.
Plenty of time to worry about the bike later, concentrate on what's important now, the rest will take care of itself in time.
I can ditto what Dave says above about the PT, this morning my Doc said "if you think it hurts now, wait till you start PT." But all the good it does far outweighs any temporary setbacks.
Hang in there and keep us posted on your progress.