Honestly, I'm shocked that there was a cop on the highway to write the ticket. On highways 2 and 16 I have seen no enforcement for a long time. Guys in company trucks drive at 140-160 pretty much all the time, and on highway 2 (Edmonton to Calgary) they drive very aggressively and I often see collisions involving them.
However, the worst highway in Alberta, by far, is to Fort Mac. It's a death-race scenario with 25 year old guys driving 160+ in heavy traffic, passing in blind spots/corners and driving like lunatics. If I were working there, I'd either fly in/out or quit my job, the highway is that bad. No big paycheque is worth being killed by some rigpig...