I stopped by Chic-Fil-A this past Sunday and it too was empty! 
Wow, me too! Same with Hobby Lobby and a couple of regional chains who have always closed their doors on Sunday for the Sabbath.
My family has been operating the same business for 70 years, which passed down from my late Grandfather to my parents. My Mom and brother still run it and they have always closed on Sundays. Not for any religious reason, putting in 50-90 hours per week earns one a break. Not these ridiculous ideas of a 32-hour work week at full pay, which Crazy Uncle Bernie is pushing.