Tell her you need to drive separate to make a fast getaway after the bball game is over.
But you're really driving separately to go to Wegmans or wherever to get 4 dozen cupcakes.
When walk into the bball game with all your cupcakes you announce to the crowd (other kids' parents/siblings and stragglers) that it's your beautiful wife's birthday and we're all gonna sing her happy birthday and eat these cupcakes, then watch the bball game.
AS SOON as the bball game ends you hightail it out of there and catch-up during commercials.
Everyone is happy, and your wife felt so special you might even get some after the Bills win.