I think it's in Essence...yes.

(There is a knock at the door. DOGGETT sets down his gun and goes to open the door. It is MULDER, dressed casually.)

JEFF THE NASCAR ANNOUNCER: … he'll be a force to contend with before the end of the day. Now, Phil Davis has...

DOGGETT: (smiling) The last person I'd expect to see knocking on my door on a Saturday morning-- Agent Mulder.

MULDER: You can drop the "Agent," Agent Doggett. It's just plain old Fox Mulder now.

(DOGGETT is a little uncomfortable.)

DOGGETT: Right. You want to come in, Fox? I was just watching a race.

MULDER: That's what I was doing. Slightly different race though.

Actually, now I'm imagining Scully watching NASCAR with Doggett. Like, he's trying to be nice and keep her company while they're on the road with a case and Mulder's dead.

...OK, that's actually going into my bigbang piece.