There's more than one way to handle this.
1. Put the injured kid in the driver's seat and report my car stolen (cover my face with my shirt so injured kid doesn't recognize).
2. Take the injured kid to the hospital. Rape an old lady.
3. Wait for the cops to arrive (shouldn't move an injured person--you can do more damage). When they do, I'd whip out my trademark phrase, "Did I do that?" (Steve Urkel sold me the trademark, btw). The cops will be so entertained, they'd just laugh and let me go.
4. What the hell are two kids doing out in the middle of nowhere on a Saturday night when I've just left the strip club? Are they runaways? If so, they're bad kids and they got what they deserved for not listening to their parents. Drive away (aka: Rationalize what I did).
5. Blame it all on a black guy. Of course, I'm black so there's only a 50/50 chance that this would work.
6. Man up. Take my punishment like a man.
I guess I'd go with #6. Of course, I haven't had a drink since mid 2009 so this situation wouldn't happen to me. I like to think of myself as the kind of person that tends to do the right thing. When I do wrong, even if I can get away with it, I usually take responsibility.