Kenosia and Marjorie are owned by the City of Danbury so they get to make the rules regarding access and to decide if they want to limit you to shore fishing and boat motor types. There are private areas where the state has a right of way or fishing easement, but that does not mean the waterbody is open to ice fishing. The owner of the waterbody if it's private can make those decisions without input from or to the state.