Saw this on Eileen's blog...
Evidently this past January, a posse of somewhat talented goofballs in Austin hacked into the computers controlling roadside traffic signs to display their own zombie warning messages. Click on the link to see pictures. In my opinion, this falls into the category of 'Slightly Amusing but Not Worth Nearly the Effort it Must Have Required." Sort of like this.
My favorite part of the article:
"No zombies were actually sighted. The most obvious problem seemed to be rubber-necking drivers slowing down to photograph the fright-fest warnings."