Black bra's defeat laser detection?

Originally Posted by Ghostvette

On the subject of laser, I got pinged yesterday, 41 in a 25. Problem is that the speed limit is normally 45, but it apparently was during the time the school zone was active. The other challenge, I had no way of knowing the school zone was active, since the sign is before I turn onto the street. I don't pay attention to the time, so might be easy to get tossed out.