Petaluma police cited 80 drivers for using their cellphones during a special enforcement operation Wednesday aimed at highlighting the dangers of distracted driving.

Officers issued 100 citations during 146 traffic stops, Sgt. Ken Savano said. Ticketed offenses included excessive speed, running red lights and stop signs, child safety seat violations and even cyclists using the wrong side of the street, police said.

In one case, a driver ran a stop sign while using a cellphone GPS device in front of an officer, Savano said.

In another, a motorcyclist seen weaving in and out of traffic was traveling 58 mph in a 35 mph zone, police said. The driver, Michael Johnson, 47, was subsequently arrested on suspicion of drunken driving and driving under the influence of prescription drugs.