That was a big fat fail

Honestly I assume this is a chainlink fence. I'd try the fence wrap in order to block the view from people. Get the barbed wire at the top fixed. After that, some cheap camera's help. If you have Wifi and a power source the Wyze camera's are cheap and very effective. Heck they even have battery powered ones now. Once that's done you can hang your signs on the outside between the fence and wrap. Make sure the wrap is on the inside.



After that, maybe start getting the word out that these cars are not for sale and you'd prefer not having uninvited guests.