If you are so annoyed by the traffic, just don't come. I would rather have empty seats than see you get up and leave before the game is over. Oh, and while I am ripping on sports fans, let me say this. Don't ever tell anyone to sit down while they are cheering. This happens more often than not.
Someone gets up to cheer the team and is told to sit down.
I remember as a little Polish kid at a Notre Dame football game, all I really wanted was one of those big puffy hands that are formed into the number one sign. I really wanted one of those. Finally, my parents relented and bought the stupid thing for me. I was so happy. I went to the game and literally could not raise the thing above my shoulder before someone sitting behind us yelled at me to put it down.