there are those who don;t care (I've seen a lotand alost got run over by one) and there those who at the aproach the intersection slow down and stop if necessary (and I've seen alot more of those on foot and in a car).
I for I dont; care if other people care or not, I speed when I can (clear road sunny day) and don't when I can't (snow, rain, traffic ... etc) and from what I have seen on highways a lot of those who "speed" do the same. (about 20-25 Km/h above the limite)
From time to time you get an ass hat zigzaging (at around 160-180 km/h) on a not so empty highway (usually I make sur to ne get in their way).
no so long ago I got stopped by one of these cops. I disanged the cruise to down shit while going down a hill, the ca sped up, at the end I pressed the wrong button - set instead of resume - it took me like 30 second to relize that, when I was about to correct my error I saw a crazy white -police as it turned out to be- car following me, so close that I wasn't even able to see the reb/blue lights -day time, so no way to know it was a police car- forcing me effectively to keep up my speed. and I got a ticket for that. While the cop got away whith very very dangerous behavious (usually et big ticket if you do it)