Staying on the business side - I think that mall managements look at what type of traffic and revenue CFA brings in, and then makes the decision as to whether to lease to them with the Sunday closing understood.

In my area, CFA seems to be concentrating more on free-standing locations, since they can offer drive-throughs. But then even Walgreen and CVS are closing older locations that can't offer drive-through and are building new stores with drive-up windows - in Coral Springs (an upscale suburban Broward County location) Walgreens has demolished a not-so-old Borders bookstore and built a big new 24-hour drive-through store.