Funny you mention it. I have a video of nearly that situation except it was a left cross and the bike was a little beat up.
Here is what I did:
In the end I had to call my auto insurance to track down his insurance info anyway because he was not willing to pay for the damages to the bike and I should have seen a doctor sooner as I have been having problems with my left shoulder since about 3 weeks AFTER the accident.
I had to promise my wife I would never leave the scene of the accident without getting the drivers insurance information.