A113 is featured in 'Deacon Stan, Jesus Man' on Chuck White's car number plate, referencing that a CalArts alumnus was involved in the animation. A113 most known for appearing in Pixar movies as an Easter egg.
Stan's quote "It's a bizarre situation. Not 8 Simple Rules, let's-keep-it-going-after-the-father-died bizarre, but close." is a reference to the show 8 Simple Rules, which the ABC network decided to keep going, despite the death of John Ritter who played the titular father under the original title of 8 Simple Rules for Dating My Teenage Daughter.
The sign in front of the Episcopalian church reads "Restrooms for Christians Only". This is a nod to the fact that anyone, even a non-Christian, can participate in communion in an Episcopalian church
When Roger is "milked" by the machine he moans "Kill Me" which is a reference to the 1986 film Aliens when the marines find a colonist who begs to be killed.