Free parking in Boston? Now there's a trip! Those of us who live in NYC know how precious that is! There are many groups here who clamor for a street parking placard .. there are many classes of them, usually given out to police and fire employees, dept. of education employees, etc. And the accredited press is even entitled to special license plates and parking, too. About 5500 vehicles throughout NY State have those.
Go for it, Boston.