WINONA, Minn. —  A home mechanic making repairs on his Jeep left to go buy a part. Twenty minutes later when he came back from the parts shop, the black Jeep Liberty was gone. Yes, he had left the keys in the ignition. This was about 4:40 p.m. in the 750 block of East Second Street. Police spotted the vehicle 1-1/2 hours later and made a stop near Fifth and Zunbro ostreets. At the wheel, officers said, was Bridget Ann Martinson, age 32, who as much as they could figure was homeless. Police said she refused to cooperate. They cuffed her and took her  to jail. She was booked for auto theft.