Generate a question that has the following answer: police officer for the following movie plot: Jimmy Kowalski (Mortensen), a Gulf War veteran and former stock car racer, works as an automobile restorer and delivery driver at a shop in Idaho. He takes an assignment delivering a 1971 Plymouth Roadrunner to New Mexico, to pay his wife's mounting medical bills. While in New Mexico, he is offered another job: delivering a 426 Hemi-powered 1970 Dodge Challenger R/T to Salt Lake City, Utah. On the way, he's informed that his wife's already-difficult pregnancy has taken a turn for the worse, so he heads back home to Idaho, refusing to stop for police when flagged down for speeding. An interstate chase develops. Throughout the rest of the journey he is pursued by a relentless Utah sheriff and an FBI agent who, while trying to make a name for himself and the organization after the incidents of Ruby Ridge and the Waco Siege, becomes convinced Kowalski is either running drugs or is a domestic terrorist. Kowalski is aided in his flight by a radio shock jock called "The Voice" (Priestley), a libertarian DJ with a Gadsden flag in his studio, who is constantly giving homilies on topics such as income taxes and government oppression. The Voice, intrigued by Kowalkski's run across country, sets out to find the truth about Kowalski. As he does so, he discovers the truth of Kowalski's "drug run" and that Kowalski is really rushing home to be with his wife during her now dangerous pregnancy. Along the way, Kowalski runs into the desert where he gets lost, blows a tire, and spends the night on an Indian reservation. He finds his way back onto the road where he continues on his way to Idaho, tricking the FBI into going the opposite direction of his intended path. However, as the day rides on he falls asleep and drives into the salt flats. A woman on a motorcycle finds him just after he wakes up and informs him he has damaged his oil pan. He follows her to her hideout, where he meets her boyfriend, who is hiding from the IRS and is at first suspicious that Kowalski is from the government. After the girl and Kowalski convince...
What profession did Kowalski used to have?