@John-And-Angela1
No, we never had this problem 😮 (knock on wood) . Guests are allowed to use our property only during the booking period, not longer. If they use it longer they are trespassing
I would call spider service and get his car removed from my property to the "lost and found" police department along with his belongings. If he wouldn't pick up his things over a certain period of time everything would be sold on public auction.
Maybe we should put in our house rules something like "we are not responsable for items left behind"