Rock crabs are seasonally available. But the ones from Alaska are very expensive. These days you can't even go clamming without a permit and many towns won't issue a permit/license for non-residents.
There is a RI website that lists violators and their offense and fines and you would not believe how often people are arrested for piddly violations which they didn't even know were on the books. Scup that have to be 10 1/2 inches. Shell fishing after dark. For a while I think Virginia had a law against fishing after midnight. Every state I know allows hunting a half hour after sunset; but Connecticut shuts down at sunset, a half hour earlier than the others.
I think that Merlin would not be allowed to service his crab pots after dark which is a time he is likely to try to do so while at his West Wall location.
In this small regional location the adjoining states present some challenging issues regarding jurisdiction. Commonly we are in the woods hunting without knowing where the state line is which passes through the area. You end up hunting in a closed state or hunting with a wrong license.