Credit: This undated photo provided by the City of Fremont, Calif., shows a blinking sign warning drivers: "Don't Trust Your Apps," in Fremont, Calif. The sign was part of the city's response to combatting the congestion caused by traffic being diverted onto neighborhood and side streets by digital maps that direct motorists away from highway traffic jams. (City of Fremont, Calif. via AP)
Car navigation tech brings new twists and turns to driving
