Of the traffic tickets I and my friends have received, most were useful in actually reminding us to drive more carefully. Occasionally you hear of someone getting an unfair ticket: I think that's the exception rather than the rule.

I hate getting tickets as much as anyone else, and I've gotten my share of them. But I still don't use radar detectors, and won't use this service.

"A visible speed trap is far more defensible." As long as the speed limit is clearly visible, why should the trap itself be visible?