That's odd, the few times I've driven in Canada(usually between Kingston and Montreal), the highways are always deserted. I've never seen a single cop on them. I know radar detectors are illegal in Canada, but I use mine anyway.
Unfortunately, cops are becoming the new cash cow for governments in need of a coffer boost. As usual, NY is leading the train straight into hell, I swear every state trooper has been reassigned to highway beat to write tickets. They seem to pick a random day, then absolutely swarm the highways. There's a pair of cops at almost every crossover between lanes and the radar guns are set as low as 6 or 7 over. NY speeding tickets are ludicriously expensive. Not only is the actual ticket at least $150, there is now an instant $100 "state surcharge" on every moving violation. As I've said before, a 17-over ticket last summer cost me around $250......after bargaining it down to a "failure to obey traffic device". It would have been pushing $350 if I had marked "guilty" and just mailed it in.