A 25-year-old Chicago-area woman was charged Saturday after allegedly attempting to run down a bicycle police officer with her car after the officer signaled to pull her over.Ashley Day, of Hazel Crest, Ill., caught the officer's attention after she allegedly made an illegal U-turn near the intersection of Randolph and Stetson in Chicago's Loop while talking on a cell phone Saturday afternoon, the Chicago Tribune reports.When a bicycle officer tried to pull her over, Day allegedly put her car into reverse and nearly struck the officer.