That's not a half bad idea!
Another option would be a sign that says..
"My neighbors believe trespassing is a 1st amendment protected right."
“My neighbors believe trespassing is a 1st amendment protected right.”
_______
Here are their names:
This is their address:
If you wish to burn a rich liber, closet racist down this is where you need to go.
Take out a full-page advert