The film references birds falling from the sky in "Beebe (pronounced in the film as "Bee-buh"), Arkansas-Kentucky." The city (Beebe, Arkansas) is actually pronounced Bee-Bee. See more
Hey, we should go into that zoo. There maybe people in there?
Wait, wait, wait... the last time we we took detours we went into that cemetery, and you remember what happened? We were attacked by those zombies. I'm not going through that again!