From http://www.chick-fil-a.com/westfieldmontgomeryOrder Food

Menu
If there is a discrepancy between the establishment's online price and the price at their business establishment; the latter shall be considered the correct price.

Chick-fil-A Menu

7101 Democracy Blvd, Spc 2122, Bethesda, MD

Fast Food Restaurant

(888) 229-7566