You can easily change the spot of the car icon when the GPS does not display the right spot on the map. Hold your finger pressed on the location where you want to move the car to on the map. The parking zone icons will appear after your car icon is on the right position.
Tip: This is also the way to see how much parking costs in the zone you want to park. Click the “I” after you placed the care where you wanted to and selected the zone. Next you will see an overview of payment times and parking fees for this zone.