Like JB, I'm going to give him hugs first.
I'm going to apologize for "losing my rag", but I'm also going to point out that he committed "grand theft auto", not the game, and damaged the car to boot. I assume that either he is a licensed driver on my policy at 16, or that he's covered (or rather I am) under my uninsured motorist's coverage, but otherwise, I'm stuck paying for that out of pocket as well.
I have little doubt my dad would have whipped me if I'd ever done anything that stupid, and I will tell him so. If he is vehement that he is too old, we will find some other punishment, but he's not getting away with this scot free, and the attempted manipulation by running away is going to earn him more, not less, punishment. If we both still agree he's got a whipping coming, and he still refuses, the restrictions he'll receive will make a whipping seem like a walk in the park.