How about NJ?
We have a friend, who needs to go back in mid August?
I'm going to NJ from MD this weekend to visit mom. NJ just put MD on its bad list. Two nights, I don't expect to drive in around while there. If I do, I'll use her car.
I ran the earlier NJ blockade without issue.
In NJ it is a voluntary quarantine. There is no enforcement that I’m aware of.