Re: Just walk on by... Christopher Walkin'. bury the baguette
Part of this dialog appears to be from Kitchen Confidential, and in this particular instance, Jack suspects that Mimi is ignoring her duties at her father's restaurant in order to frolic with her boyfriend. To "run a a place into the ground" means to let it disintegrate, to let things run amok and do nothing to save it. "Bury the baguette" is one of many slang expressions for having sex.
Christopher Walken is an actor, but in this case the speaker is using his name tauntingly as a homophone, because it sounds like "walking" or "walkin'." "Fine, just walk away, Christopher Walken..." It would be similar to invoking the name of the French Chef if someone was having a tantrum in a child-like manner: "Go ahead, act like a baby, Julia Child..."