What Tiara said... further the USCG gets real testy about such things. As when there is an ’accident’ they too get to ’investigate’.
If the boat is longer than 40 ft, they may or may not have a state registration on them. IF not, they are federally documented and fall under the jurisdiction of the USCG. Please turn them in.
Power boats are especially bad about not paying attention and not having manners, if such exists with such people at times.
Good on you for cutting that anchor and keeping your cool.
Had a friend get crab traps dumped on him in the the Keys in 2004. No injury, but it was kinda strange.
Maggie