St. Paul's chief says the directive is to provide a standard to measure performance — not fill city coffers. But the union and drivers aren't happy. Let the meter expire, even for a minute or two, and there's a parking officer issuing a ticket. Park too close to a driveway or ignore a permit-only sign and again it's ticket time. If it seems like St. Paul aggressively enforces parking meters and rules, this might help explain why: To make sure the city's enforcement officers are working hard, police want each agent to write tickets for 55 violations a day. Parking...