KBOS has a chart note that calls for higher minimums when large ships are in the channel on the approach to 04L and 04R. I think we have a performance penalty for departing the 22s as well. The ATIS will designate "ships in the channel".
I see the add for the LPV approach, but no others, and even that seems a bit odd. For the procedure design over water, you are supposed to add a 200' AAO obstacle just for ships. Simply adding this note to the plate is a bit of a disaster in the making.
Agreed, a decent ADS-B/EHS capture log would go a long way to answering some basic what/where/when questions.
Unfortunatley, the broadcast frequency is not really enough to tell, and weight off wheels is not a required broadcast.