I know you felt bad and I don't want to belittle that in any way. But honestly if some lady flipped me off over a little yorkie, I think I would've burst out laughing hysterically!! Were you tempted at all to do that, or were mostly just more upset about it?
She sounds like grumpy piece of poo, but hey, at least she knows sign language
!
But seriously, sorry this happened to you - what a buzz kill she must be to everyone around her, ya know?