In reply to bandit12:
Probably just a local land owner trying to take advantage of tourism and seeing what they can get.
I was at Haukland the other night, which has clearly posted 'no camping' signs. For some reason the police also made a patrol by as I was there. 20+ motor homes parked and a dozen+ tents. Police didn't even get out of the car and barely slowed down as they made a loop of the parking area. I could have made a killing had I pretended to be some sort of authority and charged an on the spot fee to all the Germans...
Same story can be said for the parking at Å and Skagsanden on any given night.
Unless you are breaking an actual parking regulation - parking on the road in an 80 zone, etc, I doubt much will be enforced.