Then go repair the damn car. Else pay the guy upfront before he makes it high.
Benefits of getting whoever did it, they get to pay for the cost of finding them, the cost of repairs and the psychological cost to you.
We are talking >$1000. It is a win win situation but a better win if you find this guy. He has to be responsible a pay for what he did. Now i have also remembered the costs incurred while using other means of transport otherthan your car. Throw in missed appointments when you find the guy and he might pay double what i estimated.
My suggestion, pay this dude to find the guy for you and hit your jackpot.