Right there it is clear the camera did its metering based on the darker L side of the image, and that give you a slower exposure.
50 M down the road where there are not trees the chance would have been much better.
If you focus too much on plate capture you will go insane, and not pleased with any dashcam out there.
Right now i am entering the part of the year where i don't expect any plate captures at all, due to the bleak and most often cloudy weather in Denmark.