Glad you're okay. Thanks for sharing. I do the exact same thing when turning left, but you're correct in that cyclists really should know their route and lanes. In the intersection you described (two lanes, left is left/straight, right is right only) I would have taken the entire left lane if I was first at the light, then cheat my way over into the median (assuming unprotected turn) on the green. The driver may not have been intentional or even negligent, but really should have been more attentive to your action and not tried to pass you until driver is certain it is safe to do so; legally, the driver should be at fault for making an unsafe pass attempt since you were technically occupying the lane and in front of the car initially. At least the driver didn't just drive off.