yeah, i'd actually just get out of the truck/car if that was the case. i really do have zero tolerance for some things.
a "friend" of mine (he turned out to be a real ass for other reasons as well) went to jail for drunk driving. he hit a middle-aged couple. killed the wife and severely injured (nearly killed) the husband. and he walked away w/o a scratch. an entire family wrecked for no reason and this guy still doesn't give a shit.
i'll walk 50 miles home before i get in a car w/ someone who's had too much to drink. unless i can physically prevent them from driving. if they don't want to give you their keys, let them get in the car. then slash their tires.