I hit a car long time ago and there were just minor scratches.I was new to US and scared to call my insurance company as people told me my insurance would be really high after accident and I would get a ticket.I found a cheaper place to fix his car but he took his car to the really expensive place and made me pay 1900.I still remember that.I should have gone to my insurance company,maybe it would have been cheaper for me or I should have  just talked to the lawyer.But I ended up paying just to calm down the other driver as I was at fault and I was new here.

But this is a free country .So,don't rush.Don't make a mistake .Look around. Looks like you are at fault.That means you have to pay to fix his car.You are driving a car without insurance.In California where I live,it's illegal to drive a car without insurance.Just check the rules of your state.Maybe your friend doesn't want to be in trouble with the law.So,don't panic,don't rush,get help,get some advice and then deal accordingly.I think this is not where you ask for legal advice unless you ask somebody in particular.Anyway good luck to your friend.