Melissa McGraw on "Bones"

On NCIS, one of the recurring fake food chains (the major one after CafePow) is "Beltway Burgers". The actual franchise of course doesn't exist (though a place of that name does exist in Houston).

Melissa McGraw, who had a recurring NCIS role as Diane (formerly Diane Gibbs), also guest starred on an episode of Bones (my Moms' favourite, which aired last night). "Beltway Burgers" was mentioned in that episode, and from what I can find online there's no further mention of the chain on the TV show. Was this an NCIS reference nobody else has caught?