Parking costs are included in the price, so no further payment is needed.

By law, you need to park at least 10 metres from an intersection. This is often marked by a yellow triangle on the kerb.

When finishing your drive
You must park inside the ShareNow Zone. You must end your rental in a public parking spot with no hourly restrictions where the car can stay parked for 2 hours or more. Remember to check the parking disc in the windshield

Park and keep
Use the app's feateure, Park And Keep, when you leave the car and want to use it again. Eg. on a day trip. When parking outside the city (and the ShareNow parking zones), parking is at your own expense, but is free in many places out of the city. 

More info including different ShareNow parking zones
https://www.drive-now.com/dk/en/now/parking