Under NFHS rules there is a Case Book interpretation under Unfair Acts which states in part "actions or verbiage designed to confuse the defense into believing that there is a problem and a snap isn't imminent... is illegal." Does such a rule/interpretation exist under NCAA rules?
Back around 2010 (plus or minus), a few teams tried to distract the opponent, making it appear that the snap was not imminent, by having the QB, in particular, after his team had completely set, move laterally toward his team’s sideline (only Team A player moving) making motions with his arm(s) to make it look like he was trying to communicate with his sideline for instruction. Then the snapper snapped to another back and ran for big yardage. The NCAA ruled that tactic to be UNS, by play situation bulletin. Land Clark (PAC 12 then, NFL now) made that call soon thereafter, and, a few weeks later, I (WAC/MWC/C-USA then, Texas HS now) made that call, too. 100% supported. That practice pretty well stopped. Then, in 2022, AR 9-2-2-VIII was added that covers this.