Using Google maps to get around in your car might not be a viable option for Californians, or, at least, not a legal one.

A California court ruled that using mapping applications while driving is illegal under the law banning the use of wireless, cellular phones while operating a vehicle, according to Digital Trends.

Steven Spriggs launched the case against the state of California, challenging a citation for violating 23123 of the California Vehicle Code during a traffic stop in January 2012. Section 23123 addresses voice calling and typing out text messages while driving, but does not directly address the use of maps.