Even with a spendy criminal defense atty, your local county Prosecuting Atty office will not just roll over and play dead. Between likely witness statements, and those pictures you have of your car (do the cops and the prosecutor's office have those same pix?), the criminal prosecutor already is already dealt a pair of aces. Was this guy still drunk and belligerent when the cops caught up with him? If so, that's another ace. With how your car looked, he MUST have said something stupid that can be used against him when he was picked up. If so, that's another ace. The fancy attorney will review the discovery, tell his client he's screwed, and suggest plea deals.