Because Davenport Iowa is an Old Milwaukee kind of town

From the source (below):

For reasons that aren’t entirely clear, Will Ferrell approached the the Pabst Brewing Company last September and asked if he could make a series of commercials for their Old Milwaukee beer. For free. The only catch was, he wanted to do them in Davenport, Iowa. Why that is remains unclear, as Pabst is a Wisconsin company, and more mysterious is the fact that Old Milwaukee is a terrible beer. Seriously: Hobos will turn down Old Milwaukee: “No thanks, I’m fine with this cough syrup.”

That sounds about right







Source -> http://warmingglow.uproxx.com/2011/12/will-ferrell-mysteriously-shills-for-swill