I also ate pie, but I would have had it even if it weren't 3.14.
My high school used to celebrate it big time. All the guys in physics would make pi day shirts and the math teachers would try to sneak pi into the lesson somehow.
I went out with my buddies and one of them brought it up, some old memories came back. We joked that we missed the time of 1:59, which would have made it a bit more accurate (3.14159).
BTW: My pie was chocolate cream pie.