Confusing thread here, but here is my take......
whoever owned the car pays for it to be cleaned (or just man up and clean it yourself)... pretty simple really.
If it is a limo and there was a charge, then whoever puked pays. ( and make sure to never use that limo company again)
Whoever owns the car should pay even if they weren't the ones that puked? Not so fast says Dikembe.
Whoever puked should pay the entire bill.