SALT LAKE CITY — It’s been six weeks since a KSL investigation revealed the worst parking offenders in Salt Lake City: employees of the United States Postal Service. The USPS owes the city tens of thousands of dollars in unpaid parking tickets. That hasn’t changed, and from what KSL Investigators have witnessed, postal workers are still breaking city laws. “How many (tickets) have you gotten?” KSL reporter Mike Headrick asked one postal worker. “Oh, probably about 40 in the past year,” he answered.