In Massachusetts, I have personally found the most annoying presence is the Police.
I was working in a commercial capacity last summer before our Ted Williams Tunnel was reopened. It was a calm Sunday with clear skies, etc. I was crossing the harbor with passengers when a Boston Police boat approached me waving arms, on the loud speaker, etc. I immediately reversed engines, stopped, and stood up as high as possible on my boat. I assumed I was looking for someone overboard or some other emergency. It was at that time I was able to hear the cops yelling to "SLOW DOWN". I was stunned...."WHAT?!?" was my reply. "SLOW DOWN....THIS IS A NO WAKE ZONE". My second reply "A NO WAKE ZONE...IN THE MIDDLE OF THE HARBOR?!?" My tone was evident to which they just yelled again "THAT'S RIGHT...SLOW DOWN". I just shook my head and kept moving. Returning across the harbor they had stopped almost every single regular passenger vessel with the same nonsense.
Later that day I was transporting more passengers. A woman with a Massport badge asked me about passenger volume increases with the tunnel closed, etc. I discussed the increases and also mentioned my oberservation about the Boston Police boat. I told her my opinion, that they had no right or valid reason to be on the water at all, considering the traffic concerns they were in the way of other modes of transportation picking assisting with the demand, etc. The Massport women then replied..."thanks for the information...I'll mention it to the Mayor when I meet with him". Ha ha ha - awesome - she was the Director of External Affairs or some such title. She was meeting with the mayor to discuss transportation concerns, etc.
Anyway - as far as the USCG is concerned I've been approached once and boarded once in 7 years. Both experiences were professional and quick. These guys have balls of solid steel to go out into insane storms to rescue people. I have extreme respect for them. If I had negative experiences, as is the case in most instances dealing with cops, I'm sure I would feel differently.
For Nemrod - I'm sure you are proud that Boston Whalers are almost as good as Grady White's

It's pretty hard to mess up the design of a bathtub. Bayliner owners like me have, and will move up to larger boats while you're still frothing at the mouth with the look of crazy saying "my boat still floats cut in half - hey look at my fittings - it was worth triple the cost of a Bayliner!"
--Matt