Hacking electronic road signs so that they display warnings of impending zombie invasions has become something of a national pastime. Such pranks have taken place in Florida, Illinois, Kentucky, Maryland, Pennsylvania, Texas, and probably elsewhere. (Our brains remain safely in our skulls, so we at least assume these are pranks.)
Now it appears the zombie threat has reached San Francisco. As richmondsfblog.com reports, last Sunday's northbound motorists on Park Presidio witnessed a roadside sign with the electronic message, “ZOMBIES PLUNDER SF.” (See photo, right.) What could it mean? Who are the hackers? Where are the zombies?