Warning has false information and false fees, but still pay?

Hi, had received a warning because of a few km/h too much in a lane narrowing on a country road. The measuring point was outside of villages. After one side 200m to the village entrance, after the other approx. 800m to the next place. But I was issued a warning for inside places instead of outside. That makes 5 Euro difference, naturally in favour of the municipality. What do you do there? Subject to less pay would probably mean a bus money procedure, so the over Is that what you’re gonna pay?