I played a game last night where I was the Auditor. It ended up in a 2 town, Auditor, GF situation where the GF could not kill. Because GF was night immune and thus could not be audited to a mafioso, I talked shit at the bus driver to get myself turned into a Stump so that I could win with town.
At the end of the game, it awarded me points for my first Auditor win, as well as the "Justice" achievement for stumping myself.
In the following game, I was shown by -alist as still needing an auditor win.
Attached is a replay of the first game; I was "Age of Mystic Ice" in the teal slot.