The Packers are the heart and soul of Green Bay. Fans own "stock" in the team, and season tickets are a valuable commodity. That made tickets to the Christmas night game with archrival Chicago either the best gift a fan could find under the tree, or (if her sign is to be believed) a perfect way to get back at a cheating boyfriend.
Well played, Packer fan. For your use of tickets to get back at the ex and a clearly-written sign that let fans across the country know you were smart enough to move on, you win the Shutdown Corner sign of the year.