I've been told by the powers that be, that EVERY state park is open to fisherman 24 - 7. I was also told that if you DO get hassled, get the guys name, and then you call the administrative folks (as always with this state, you should get the caller's name and tell them you WILL place a FOLLOW-UP call)
i heard that people were getting bothered at ft. adams, turns out it was just a kid who was hired for the summer, and didn't realize fisherman were allowed.
The parking permit is something that just boils my blood

The state's constitution clearly states people 'have the right to FREELY access the shore' for the purposes of fishing, swimming (bathing), and collecting sea-weed.
the rub lies in that nothing says towns need to provide parking for people, which turns OUR public land into semi-private - only accessable to people within walking distance.
A spot that we took to court opened up a historical fishing spot, and set a great precident. The judge ruled that providing reasonable parking was a crucial part of providing access. hopefully in time that ruling can be used in the future to reclaim spots that are now unaccessable to us.