Replace "steal" with "call a registered tow company" and you can do exactly that - have someone remove an improperly-placed item from your property. Cities solved the problem of improperly-parked cars by creating the entire "towing" concept.

Police aren't a service for junk removal, they are for holding guns. You hire a moving company to remove junk and you get the police to come hold guns if the junk-leaver threatens to do you harm because of same.