I liked it. Was pretty disgusted by the character, which means you did a good job. Washing off the brush in the toilet bowl was a nice touch. From a narrative standpoint, it's great. Compositionally I would have liked to see a wider range of shots, as I think the camera is held in place a little too often (i.e. when he goes to get the mustard, I don't think that pause is necessary, especially when you close-up on the mustard bottle later).
Some minor nitpicks: The last line, which is pretty important to the whole piece, is kind of muffled/barely audible (maybe that's just youtube). It's a college team, but the MNF theme is playing? The radio audio just sounded strange to me, I think it was too much echo?
Funny short! I agree with acoughla though, the punchline seemed a little understated. Maybe having the music grind down to a halt when he realizes the gate is locked followed by somebody shouting "it's an away game bud!" from a passing car with a beer can bouncing off the street would punch it up (right now you have no reason for the other person to be there).