Not because of a flight plan, but because all of Quincy appears to be in the Boston Class B airspace with a ground level to 7,000 altitude. All aircraft operating in this airspace must be in contact, and have permission to enter, with/from ATC.
Lots of Aerospace and Software companies in the Boston/NH area. Could it be a part of this?
“gorgon stare” LOL! I’m laughing but it ain’t that funny...