I don't in any way support drunk driving, but I do think it's unfair to frame it as "a few bucks." That would only be true if you were within walking distance and sharing a cab with others. For most of the situations I've been in, it's more like $60 plus a big gamble that there will be any rides available. In many areas Uber/Lyft are the only options and during low hours (particularly early morning 12 to 2) there aren't any drivers.
I would agree if the buying the car was only for driving home from the bar. That seems unlikely. I would guess that in nearly all cases, the person already owned the car before they even decided to go to the bar that night.
