We've been clear in our insistence that you please NOT hack electronic road signs, but have been impressed by some of the cleverness of readers not listening. Like hackers in Houston writing Internet drivel on a construction sign.
A hacker followed the very simple steps we told them not to follow and hacked a road sign in Downtown Houston — changing the word "Detour" to "POOP" over the weekend.
The sign was changed back and then re-written as ":) LOL."
Sign-hacking is apparently so simple even the least creative 4Chan member can do it.