FSU lineman are "trained" to sit when offsides occurs, so they cant get falsely flagged for false start and even DRAW an encroachment flag. They have done it in other games too. He just took it too far and I guess he thought a flag was thrown.
"Anyone who has watched college football and most certainly if you've watched FSU you know that their offensive line coach, Rick Trickett, teaches/stresses this technique which has become known as the 'Freeze Play'. The purpose of the freeze is to help draw attention to a defensive line violation. Typically all five offensive lineman remain in their stances throughout the play. This has occurred several times this season; effectively, might I add. In this case there was obviously miscommunication between the offensive line(the center) and the QB. or Mr. Sanders saw something and assumed the center and QB saw it as well and they obviously didn't."