In Japan I heard that there is a 0% alchohol limit for every body and if someone is caught everyone in the car and, if they had been at a party, everyone there also gets busted for letting them drive.
Sounds logical to me, and if that's not right maybe it should be.
Probably the driver here will also now agree, assuming that was their reason for running.
Besides I prefer to drink at home where it's not so far to the fridge.