3.7.5 SITUATION A:Substitute (a) A1, or (b) B1, noticing his team has only 10 players on the field, comes onto the field just as the ball is about to be snapped.
RULING: In (a),
A1 must be on the field on A's side of the neutral zone, inside the 9-yard marks, and not violate the shift or motion provisions. Furthermore, the act of his coming onto the field must not deceive the defensive team. In (b), the substitution is legal as long as B1 is on the field on B's side of the neutral zone prior to the snap. (3-7-6; 7-2-1, 6, 7; 9-6-4)
So, I agree that the substitution is legal. That leaves 2 live-ball fouls at the snap, illegal formation and illegal shift. I really like the NCAA rule/philosophy of converting an illegal shift to a FST if A/K never comes set, and I might have shut this down and let them try again 5 yards upfield. (I know there is no NFHS backing for that, just sayin')
I also agree that there was only 1 player on the LOS.