TAMPA — Sometimes authorities seek out drunk drivers. Other times, drunk drivers come to them.

Hillsborough County sheriff's deputies were arresting an alleged drunk driver Sunday when another car sideswiped a deputy's patrol car, the Sheriff's Office said.

Deputies said they stopped a BMW at the corner of Dale Mabry Highway and North Village Drive about 10:30 p.m. The deputies believed the driver, 36-year-old Michael Probst of Tampa, was driving while impaired. A Breathalyzer test showed he had blood-alcohol levels of 0.114 and 0.134, deputies said. That is about twice the level, 0.08, at which state law presumes a driver is impaired. Probst was arrested on a charge of DUI.

During the traffic stop, the Sheriff's Office said, a 2005 Dodge sedan side-swiped a marked sheriff's cruiser parked along the road. The driver of the Dodge kept going along Dale Mabry and was eventually stopped by deputies near W Fletcher Avenue.

The driver of the Dodge, Todd M. Casey, 49, also underwent a Breathalyzer exam and had a BAC of 0.181 and 0.196, deputies said. He was arrested on charges of DUI with a BAC over 0.15, DUI with property damage and cited for violating Florida's "move over" law, which requires drivers to move over or slow down when passing emergency vehicles on the side of the road. No injuries were reported.