It's a shame that this seems to be growing problem in DC. I was harassed and lectured by cantankerous lakefront homeowners on consecutive weekends in June while drafting along the shoreline break - slinging casts on flats, along the drop, and toward piers. I skip piers if people are out and about like any courteous angler; but these folks marched out of their homes to holler at me. It sounded like they were reading from the same script: "these smallmouth are like my pets, hooking kills them, get away from here and go fish in the middle of the bay."
I kept my temper in check, but I provided the last one with an education on Public Trust Doctrine as I MinnKota'd away - which they angrily brushed off like an old man sending back soup in a deli. They don't care - they think the own the water, the fish, the lake bed and the wind. None of them threw rocks at me, but if they did, you can bet I'd mark the GPS coordinates and give the Door Sheriff's Dept a call. That level of angler obstruction and property damage is a violation of at least a couple WI laws. https://docs.legis.wisconsin.gov/statutes/statutes/29/II/083
I'd be curious if local guides and the boys down at Howie's have experienced or heard about these confrontations.