My guess is that her attitude would change completely if you could simply wheel up to her at a light and say "Thank you for waiting, I hate riding in the lane like that but am at the risk of hitting a door if I don't in that section". The problem is that they usually just honk, cuss at you and drive off; which makes me want to throw a multitool through their rear window.
I like the idea of squirting the water, but you would have to be careful who you do this to.