Close to my work, Sunday at 11am it was pretty desolate (usually this is a busy place!) so it fit the bill.
Double double animal style and Neapolitan shake.
Extra star given for fast friendly service by cute smiley people.
Prices have rose steadily over the years so I don't go as often, though I do as In-N-Out urge hits! ;)
Tip: the original SoCal locations are awesome, and outside the area places serve fairly consistent grub even if not as good...