Bob and Joan Biebel met on the job, as Chicago police officers, and things progressed slowly, as love stories go. "I chased him for eight years before I finally made him surrender at City Hall," Joan Biebel said with a laugh. "I wore high heels, and he had to park at the cheap parking lot three blocks away," she said. "Our reception was at McDonald's for a cup of coffee." Mr. Biebel kept their courtship close to the vest. "He and I were partners for years — I had no idea they were dating," recal