I was around the Weirs at roughly the same time as you sa meredith and I saw both MP boats as well. One stopped a boat leaving the docks with absolutely no lights on and a pontoon boat with no port (red light). Being visible in a high traffic area and stopping boats for "minor infractions" that they are trained to observe (such as a plate light on your car) is going to nab those people who choose to over indulge during the holiday weekend. Kudos to the MP for doing their job.
And samiam they nabbed these two boneheads yesterday pulling what I describe as a "dangerous stunt"
http://www.wmur.com/news/16796286/detail.html