IG, this sounds like a familiar dysfunctional pattern re-emerging. Why not simply do as SD has suggested: if you accept it in your mind as final, it will be final. There's no need to flail about throwing flaming darts that will miss their mark anyway. It's the intensity of the emotional investment that keeps the connection alive when it needs to die. I don't see it as empowering, but rather as desperate, and if you should decide to report her, it will reflect badly on you. What you want from her, you will never get. Put your energies into taking the higher road.

The only other thing I would do differently is to cancel the session and any future continuance by e-mail, but send the data request by registered snail mail to the Clinic director, copied to the PA. If any legal follow-up ensues, it's proof of notification.