I actually went to our local drive-in on Friday! It was $12 for two movies. They were showing ET and Jaws for Steven Spielberg weekend. My wife and I loaded up on snacks beforehand (although we supported the venue and got a few things there as well). It was nice to be able to chat a bit with her during the movies. We were able to make fun of the hokey, outdated bits, theorize what was going to happen next, and just do what we wanted.
The place sold out about 2 hours before showtime and we had a very nice night just to ourselves without having to deal with other people.
It was a bit like road tripping but without the need to drive and the places we were going were just in the movies we saw.
How do they handle the concession stand? My local drive in has huge line up's normally, the area is crammed with people, I can't figure out how they would manage the crowd today and social distancing. The rumour is that they are opening soon, I can't fathom how.