In Drug Traffic the border patrol agent, Michael Rooker, has Old Woodenhead beer in the refrigerator. Old Wood n'head is a character in one of the stories in Creepshow 2.
In "A Dead Girl Named Sue", the reports being broadcast are direct audio taken from "Night Of The Living Dead" (1968).
In "A Dead Girl Named Sue", which pays homage to Night of the Living Dead (1968), the Police Chief's patch says he's Monroeville County Police. Monroeville, PA is where Dawn of the Dead (1978) was filmed.
In the Drug Traffic segment, around 11mins into the episode, the Grantham Family Ashtray is on a desk right above the mini-fridge, top left of the screen.
In A Dead Girl Named Sue, the Grantham Family Ashtray can be seen at the very beginning of the segment in the middle of the desk actually being used as an ashtray.