I'm with Bruce on this one. Speed, get caught, try to beat it or take the class, etc. Accepting that laws are laws and speeding is breaking one of them, I think the difference between this system and a cop with radar is that the cop will generally target cars who are moving at speeds that stand out. If all traffic is doing 75 in a 65, then everyone's OK. The joker that just has to go 85 and is changing lanes every 10 seconds is the one creating a danger and he'll be the one to get nabbed. The wires in the road take away that discretion. That's the part that I don't like.
I'm also with Bruce on not having a radar detector and not getting tickets. I don't drive slow. In fact, I always drive just a little faster than everyone else because I feel like I'm better able to know where all the cars around me are and I don't like cars coming up around me. I just don't call attention to myself. The few times I have received tickets I've been the one singled out by a cop just waiting to get any car that comes over the ridge a little too fast and I figure I'm fair game on those. "Yes, Sir. Yes it is a fun car. I'll see you in a month - have a nice evening".