This is the garage door of a building in Cape Town's CBD, and I think they mean it. It use to be difficult to tow away illegally parked vehicles because it's not always easy to get a tow-truck in position to remove the offending vehicle.

However, a few years back we started to see flatbed trucks donning special car-lifting cranes roaming the city streets. Operators pull up to the side of an illegally parked vehicle, slide large jacks underneath the vehicle and lift it up onto the back of the truck.

Park illegally, give them 5 minutes, and your car will be on route to the police impound. Just don't do it! :)