Mr Garnham said that in many cases, finding a local police station that was closed was more frustrating than having to contact a more distant station where a response would be assured.
But congressmen said on Wednesday after closed-door briefings that the brothers are not believed to have had direct contact with a militant organisation.
Its corporate purpose is to "glorify God by being a faithful steward of all that is entrusted to us" and "to have a positive influence on all who come in contact with Chick-fil-A." All of its locations are closed on Sunday.