The Department of Motor Vehicles was featured in the Season Seventeen episode, "Let Go, Let Gov". This is a government agency that issues Drivers licenses and identification cards as well as offering drivers education classes. Although the place is a government agency, it was shut down when the head of the place and some employees where arrested for child molestation, along with the post office.
Butters Stotch misunderstands Eric Cartman's paranoia about the US Government spying on him with God. He finds a new religion which holds worship services at the DMV by confessing his perceived "sins" to the seemingly apathetic employees.