My best friend moved to Florida this week.
For several months while my godson finished school here, both parents were taking turns moving things and settling things between houses. Her husband installed some type of camera system in the Florida house so he can watch it on his cell phone or computer when he was home in NJ so this exact thing wouldn't happen. He also went around to the new neighbors, introduced himself, and asked them to make sure nothing funny would happen, call him immediately.
Everything seemed to go ok, my friend and my godson flew down this week, her husband stayed back here until next week when the movers come and he will drive down with his car separately
Then the NJ house becomes the new owners problem, I guess