crowd noise penalty

[bigwes68]

Two years ago, prior to a game between South Carolina and Tennessee, USC coach Lou Holtz threatened to have his team stay in the huddle if the crowd at Neyland Stadium was so loud that his players could not hear the play or the snap count. One SEC official made the statement that he had only seen the crowd noise penalty called once in his life, and it was in Knoxville. What exactly would be the penalty, signal and yardage on this call (if an official ever actually had the balls to make it)? My guess would be 15-yards for unsportsmanlike conduct.