This guy is quickly becoming the cancer I expected him to become. He should be invited into a meeting with Jerry, Wade and Garrett and explain himself.
I would start with a demotion to #4 WR/ST player until he readjusts his attitude. Once that is better, we should work him back in as a #3 WR so we don't have to worry about feeding him the ball anymore in the base offense which has been stalling our drives.
If he doesn't apologize, I would suspend him for the rest of the year and release him in the offseason. I don't want any cancers in the locker room. They have been appeased for far too long in this organization (Ellis, Pacman, Tank, TO and now RW).