Forget it. Goodell will never look into it as he and Kraft are best buddies. GB could probably file a complaint, but a) I doubt they do that and are probably just happy to be rid of him and his attitude, and b) the NFL won't look into it anyway. But by not looking into it, the NFL opens the door for other players to do the same. For example, Andrew Luck can pull an MB to get out of Indy. "Owie, owie! I need to retire because my shoulder hurts and I need surgery. Wait. GB is calling? Put me on a plane!"
My biggest disappointment is the sports media giving MB a pass on this. SI's King says nothing other than, wow, Bennett went from being released and taking his kid to school to playing the same week. No one has grilled him about the stunt he pulled. So much for hoping the media points out the hypocrisy.