I think people do, yeah. Last night I had to shoot a gap again to avoid being rear-ended by a muppet on the 401. The honking started immediately.
Canadians will wait for 35 seconds at a door so they can hold it open for you, but ask for a brief hesitation of any kind on the road and we all lose our minds. It's wild, the world's friendliest, most polite people are also among the most road ragey.