There are very active local Buy Nothing groups on FB where people post all kinds of things.

Grew up there and know folks still there. It’s gotten more bougie (Whole Foods instead of Food Town) but still seems pretty nice.

If you know whose car it is, it would be an asshole move to call parking authority. But if it’s some rando, don’t feel bad about calling. For me, 90% of the time it’s someone connected to the restaurant next door and I just walk over and ask them to move it. But if I don’t recognize the car and no one there knows whose it is, I have called. I’m pretty reluctant to call the cops in general but in this case they’re just ticketing the empty car — you’re not inviting the danger of a violent confrontation.