File the ethics complaint now.
Yep. The Ethics Committee will jump right on that. And quickly bury it in a file.
I predict, in two weeks, the issue will have been buried. (as it should. Compared to the need to focus on the oil spill, a little ethics violation on a promise that didn't even go through, and from all accounts would be impossible to prosecute unless a 'tape' is found, seems more like misdirection.)