Albertadiver, you obviously left too much room between vehicles
Here in Calgary it's anything you can do to get in front, hence, run up the lane that comes to an end knowing full well it ends, someone lets em in. Slow all down except for them. The same ones do it all the time and at the same spots. When they give you the hand wave it's for thanks sucker or they have a new driver sign on their back window to say OH excuse me for my stupid driving. Guess what??? It works for them. SUCKER. See it all day long and suffer cause I'm suppose to be a professional driver. Crunch em I say.
After they get they're licence who ever they may be they make up their own rules. STOP???? does not pertain to me on a 3 -4 way stop or right turn on red. I can go on and on and on and on. The OP is just a taste of the crap that happens. Stories by the bookfull to tell