I tried to eat there for lunch. The drive-thru line literally wrapped around the building twice and went out into the street. They needed people directing traffic where the line had to cross to spiral in and had multiple people with headsets taking orders along the line so you could skip box at the menu. It still would have taken longer than we had. We will not be as rushed for dinner.
UPDATE: The Chick-fil-A on US380 in McKinney, TX sold out and had to close at around 6:00PM.
Since the stores knew in advance and had prepared for a big day, I would call that a buycott success!!!