I had a sign saying tresspassers will be sold as chum. Cops loved it but the code enforcement people didn't.

What are they snapping pics of? You don't have any
potential terror targets within sight do you? If so that would deserve a call to proper authorities.
I'm still in Jersey and the cops get all wound up with anyone looking suspicious around any place overlooking anything of importance and they get really touchy about bridges.
That in itself has been a problem this year. A group of bottlenose dolphin moved into the local rivers and have become a tourist attractor... All the people are saying"poor things, they must be confused or lost"... My ass! They're eating all my next years crop of baby weakfish...

My place in the keys gets hispanics on my lawn but they usually float in on rafts...