I would file a report either way so that you have it on record. You can decide if you want to include his info or not in the police report. Then report it to your insurance, if you want to, right away. Or, if you think he's legit & will pay you, get an estimate for the repairs & ask for the money up front. Tell him if he doesn't, you'll need to file a police report so your insurance will pay the damages. You can decide if you want to include his info or not in your report to either the police or your insurance.