I’ll tell you about a conversation that I had with my kids when they started high school.
I told them that I didn’t want them to drink when they were underage, which they already knew. But then I told them that other kids often weren’t as well-behaved as I knew my kids to be. So they might find themselves in a situation where they had gotten a ride to a place and then the driver started drinking. I told them to be perfectly secure in the knowledge that they could call me at any time, from any place, and that I would come to them and pick them up. Further, I told them that I wouldn’t give them any “attitude” or embarrass them in front of their friends, and I would even cheerfully drive home the driver himself or anyone else who was stranded. And I wouldn’t lecture anyone at all. I also told them that if they were the ones who had drunk, that the offer applied to them as well – and we could talk about consequences some other time. I told them that if I couldn’t make it to where they were, then I’d call a cab for them myself and pay for it, with a generous tip to the driver.
So, would I drive my drunk neighbor home if called? Sure. Especially because my kids, my friends or my other neighbors might be on the road that night, too.