SAN FRANCISCO (AP) — A Central California court says it's illegal to use a hand-held mobile phone's mapping function while driving. A Fresno Superior Court has ruled that California's law barring texting and hand-held phone conversations while driving also prohibits motorists from holding a mobile device for mapping purposes. A three-judge panel of the court concluded last month that it's illegal for motorists to hold mobile devices in their hands for any purpose. The ruling won't apply outside of Fresno unless a higher court affirms the decision. It stemmed from a motorist's challenge to traffic ticket. Steven Spriggs was ticketed for holding his cellphone as a map while driving and fought the ticket in Fresno County Superior Court.