Radar Detectors

I was driving to work on Monday and saw what I would call a contradiction of sorts. In my opinion, a radar detector is 1) totally high school 2) for people with a lead foot and/or 3)pretty much useless. I had a radar detector at one point (high school) and in my mind, the point of it was to alert you when there was a cop so that you can check your speed and hopefully prevent yourself from getting a speeding ticket. The problem is, that by the time the radar detector picks up the radar, it is usually too late (not to mention totally obvious when you slam on your breaks) to avoid getting a ticket. So, here is the contradiction....As I was driving to work, I was stuck behind a long line of cars, the lead slow-poke being the problem. We were all stuck behind him because it was a one lane road on a bridge, with no room to pass. So as the road turned and widened, there was opportunity to pass. There was an immediate gunning of engines and people desperately trying to pass him, me included. As I passed the car, I noticed it was an older couple and there was a radar detector on the dash. Did he REALLY need that? What, to avoid getting a ticket for going too slow! It made me giggle on my commute, so it was worth it!