[Borodog]

[ QUOTE ]
Hardly, unless there were enough traffic cops to monitor all traffic all of the time. If they didn't stay hidden, people would simply speed when they weren't there and hide otherwise. If they stay hidden there's a possibility that you're of being caught at any time, and hence have an incentive to never speed.

[/ QUOTE ]

And how well does that work?\

Edit: But you do have a good point. It's still a racket, though.