...

Walter Sobchak: He lives in North Hollywood on Radford, near the In-N-Out Burger...
The Dude: The In-N-Out Burger is on Camrose.
Walter Sobchak: Near the In-N-Out Burger...
Donny: Those are good burgers, Walter.
Walter Sobchak: Shut the fuck up, Donny.

As blogadilla called it: the Freemasons of the burger world. Sounds about right with a secret menu and Bible verses on their food packaging.

http://en.wikipedia.org/wiki/In-N-Out_Burger
http://www.blogadilla.com/2007/07/04/urban-non-legend-in-n-out-burger/

Innout20x20