"Get a frigging warrant if it means so much to you. I'll wait here. Your boys can get the hell off my property until you show back up with it." ]
Build a high fence and use a gate that has to be opened, preferably an electric type gate with a remote when you leave to go to town/return.
And HIGH enough fences to keep peeking busybodies at bay too...
Abner, Abner, our neighbor is doing something....