Nope, it's illegal procedure and is cause for dismissal from the park.

Line jumping will be countered by a foot dropped precisely .01 mm infront of the perpetrators feet.

Had 1 incident this year at SOB when the line was actually long. We were on the ramp and these 2 kids about 13 bumped into me and the guy in front of me trying to push through... I said something and they started making some excuse. Fortunately the other person they bumped into was a HUGE biker type fellow who said "You can go back to the end of the line or you can go over that fence." They chose to go back... It was hilarious.....

As long as they dont like go through the entire line and they are actually meeting someone that was in line then I usually just let them be.

If it is just one person going ahead in the line I don't mind so much, especially if I saw that person leave the line previously. What really annoys me is when 4-6 people shove through rudely and join 1 or 2 people almost at the front of the line. This happened to me while waiting for Firehawk. I would have told, but they had already ridden by the time I got to the front of the line.

But according to the rules, even if your in line and leave, it's still considered Line Jumping.