The story was published as part of Tor Books' Zombie Week in 2010.
Find it here:
Several commenters were also quite taken with the story:
"If the plethora of zombie stories were as original as this one, I wouldn't be sick of zombie stories. I'd like Kurt and Zelda to apply their talents to the vampire genre as well."
"A wry story, funny/violent/sad/unsettling/nice...and that little slotted door/behind the slotted door juxtaposition was brilliant. "
Huggins and Devon keep a website
called Teetering Bulb
where they share their continuing work.