I don't even think this would be an unfair act under Fed. The key case play, 9.10.1 SITUATION B:, has two elements: the snap not being imminent AND actions/verbiage designed to cause the defense to think there's a problem (in the case, a missing tee). In this case, there are no actions/verbiage suggesting some problem, just a normal football signal. Legal deception in my judgement.