Tequila

One of Maura's cases was People v. Fusco. This is a reference to the series' co-creator Paul Fusco, who also provides the voice of ALF.

After Alf writes the welcome message on the wall in crayon, Willie is shown trying to scrub it off but only manages to smear it. He then states that it will have to be painted over, but when he starts to do so, the message is back and shows no sign of the smears left by the failed cleaning.

At the end of the closing credits of episode, Alf is heard laughing.

References Dizzy Dishes (1930)