Large companies that spend all day delivering around Boston have people who's only job is dealing with parking tickets.
A meter maid told me once that the city of Boston has a program for delivery companies that greatly reduces the amount they actually pay for parking tickets.
Companies like UPS, DHL and others qualify for it, but it requires the plate numbers of all the vehicles used in Boston be listed with the city.
If one of their vehicles gets tagged, the company only pays $1, regardless of the actual ticket amount.
This applied to most of your standard violations like expired meter, no stopping zone, double parking etc, but NOT for blocking a hydrant or crosswalk.
Once I had to go retrieve a DHL van that was towed by the BTD, and bring it to the DHL facility in Southie.
The driver had a medical issue and went to the hospital, while the van was on the street in front of the place he was making his delivery.
The BTD towed it to their yard on Frontage rd.
When I picked it up, it had several tickets on it. I towed it to DHL and the manager came out and told me where to put it.
He noticed all the tickets on it and said to me "we're going to have to pay full price on all these tickets because it's a spare van that's on loan to us from another facility, the plate is not listed in the Boston database".