Dude, That sucks. I don't know if it is too late now, but call the cops. In hit and run with property damage, they should be able to get tapes for their investigation.
What I have learned in last couple of years is to _always_ call the cops in any sort of accident, even if there is no apparent damage.
(I had a woman rear-end my wrx, there was not very much damage so we didn't call cops, just exchange insurance. After two conversations with her insurance regarding fixing my car, she began to claim it was _my_ fault she _rear ended_ ME!
If the cops had been there, they would have assigned fault on the police report, and I would have been able to have her fix my bumper... Always call the cops!)