Former University of Colorado President Betsy Hoffman "thought long and hard" before hiring a car last year to wait outside a donor dinner in Seattle for several hours, she said this week. The $534 charge criticized by state auditors Tuesday was an unusual circumstance, Hoffman said. The house was hard to find, it was dark and she didn't want to be late. But a Rocky Mountain News review of CU payments to limousine services shows hired drivers idled outside at least 10 events Hoffman attended, from a dinner at the Denver Museum of Nature & Science to the funeral of...