June 28, 2012
Updated Jun 28, 2012 at 3:05 PM EDT
She didn't get a speeding ticket, but she spent some time in jail.
According to Houston television station KTRK, a Texas woman says she spent 12 hours in jail last week for warning motorists of a speed trap in Houston with a sign made from a grocery bag.
Watch video and read the KTRK story HERE.