It happened around 1:45 a.m. Saturday on westbound Route 70 between Ranoldo Terrace and Kingston Drive.
Police say the woman behind the wheel of her car, for some reason, was traveling eastbound in the westbound lanes.
The police officer in the cruiser traveling westbound had no way to avoid the vehicle, and they collided head-on.
The woman became trapped, and firefighters had to rescue her from the vehicle.
Both the officer and the woman were taken to Cooper University Hospital for treatment and released.
The woman was issued a motor vehicle summonses, and charged with driving while intoxicated.