This has been occurring since at least the summer of 2007. I brought my boat down from Boston Harbor to Savannah, Ga. coastal cruising and going down the ICW. Unfortunately, when we left Boston harbor the local CG/harbor patrol was very unpleasant; they ordered us not just out of the channel but to pull into a marina threatening us with a hefty fine. I found this interesting as we passed through several large commercial harbors that handle hazardous cargo and had no problems with the authorities. Other then this incident we had an excellent time in Boston.