Pendleton Ward must really like Animal Crossing: New Leaf -- why else would he play it during a Beyonce concert? Then again, the game makes sure to give you time-sensitive events; maybe Ward just had a date with a villager that he couldn't miss.
But many of us have done stuff like this. I recall slipping out of a Christmas party years ago, just so that I could check into my Animal Crossing town on the DS. (It was worth it.)
Anyway, yes, Ward plays Animal Crossing -- this is his house:
And these are a couple of his designs... no QR codes, I'm afraid!