At least one motorist was seeing green, as well as blue, on Saint Patrick’s Day weekend. Tennessee Highway Patrol made one arrest in Warren County for driving under the influence.McMinnville Police Department Lt. Mark Mara says the arrest required the assistance of a drug recognition expert to determine the cause of the person’s impairment.“We had no impaired driving arrests and no DUI-related accidents in the city,” said Mara. “I know they had at least one DUI arrest with THP. They called in DRE because they couldn’t draw blood from him due to his veins.