My "quick read" of the law as it appears in the The Boater's Guide has been amended by going on line and finding the actual wording of the law under Section 270:31---Scuba Diving and Snorkeling---
1. Any person engaged in scuba diving on any of the public waters of the state and any person engaged in snorkeling IN NORMALLY TRAVELED NAVIGABLE [caps mine] public waters shall have a diver's flag, ----etc
I do not consider swimming within 150' of my property's shoreline, clearly marked on navigation charts along with a marker placed by MP, to be "in normally traveled" waters. Furthermore, having removed her snorkel,
my wife, who swims for her health, is less visible now. Does anyone suppose this is what the law intended?
I think the MP officer was wrong.