Must post on this thread so I can tell my grandchildren that I was part of one of the greatest moments in Aggie history! This is most definitely the thing of legend. Well done sideline....I'm in awe.
I actually remember seeing Sideline Guy during the live broadcast running off the field after Sumlin and thinking that he had a huge **** eating grin on his face. He looked like he belonged, so I figured he was grinning because we were leading at half time. Little did we all know...
I don't think you have any conceivable liability in this situation. You had no way to know he should not be there. Confirming you had a conversation with someone should not be a problem.
I just rewatched the game and slowed it down at half and sure as heck you see the OP run from the left hand side with a huge **** eating grin on his face.