The property owners should seize them for unpaid storage fee’s. That has happened in my state. Putting your property on someone elses property is considered a tacit admission of a debt when it comes to storage. Ironically there is another law that states you can’t charge for more than six months storage without a signed agreement. However there is nothing regulating how much that fee is. Case in point a person failed to pick up late model car at a towing company for two years. The towing company gave the owner a huge bill and they went to court to get it reduced to six months. The towing company just resubmitted a bill for six months at a increased rate that equaled the amount of the original bill. By the time the asshole who should have come and got their car sooner got through the bill had went up again. It was quite entertaining. to watch.