I just heard a USCG aircraft say they were leaving Gaithersburg enroute to the bay. That was on 157.15. I know they have a trailer there at the airport but I've never seen or heard them. On a different note, I saw an animal control van pull over a car on Rt. 66. A Fairfax County officer exited the vehicle to approach the car. That is a pretty good unmarked vehicle. Carl in Rockville