In front of the two vehicle accessible entrances to my 6-floor office building, there are no parking signs. No parking, standing, drop offs, if the vehicle blocks the entrance. These are due to fire code, and we have issues with people leaving their vehicles parked there for long periods of time.
During the last fire marshal walkthrough of the building, someone parked there. They had the vehicle towed.
Last week, there was a power outage that caused the elevators to stop working, and the building was evacuated. Someone parked in front of the main entrance.
Today, I came in to work and there are 1' high letters painted on the pavement with no parking. We'll see how well people obey that sign.