If you see this happen again, tell an associate or tell him yourself, he CANT do that. I never let this get by on Beast unless its just like 1 parent trying to reach small children or a small child had to leave to use the rest room and couldnt hold it. I caught some little punk try to leave the line Saturday and go to the restroom and then go back to his friends, i told him he couldnt do this then he tried jumping inot the line through the exit, i kicked him out of line.
I am happy that you are combatting the problem. I have never cut in line on a ride. I always look at the rules on the map before entering the park.