PAT Trick Play

[Rolling Wolf]

I had a team run a trick play against us our last game which I do not think is legal in high school football. The opposing team lined up in something similar to the old water bucket formation for extra point after TD. The center snapped the ball to the kick holder on one knee and the receiver well away to the right side ran around behind the holder and received a backwards toss with the holder's knee still on the ground. The receiver went on to score.
I believe the holder's knee must come off the ground before he can pitch or pass the ball for this to the a legal play in HS. I know this is legal at the college level but I think I remember reading somewhere in the past rule book that this is illegal in HS.
Am I correct in my thinking?