Have you been able to resolve the issues you had?
Sorry, I had some travels (by air), so, I couldn't play with the camera for a while. Below is quick summary.
1. During the night, all license plates on the video appear blown out (all white): they seem to be too reflective. CPR doesn't seem to have any effect on that. Is this normal or do I have a bad camera? (see the snapshot)
This is still hit and miss. I've repositioned the camera. Tilting the camera slightly lower may have helped somewhat in the way that there is less flare from the light sources and from the bright license plates. I am guessing, the could have been something with the angle of the windshield that was contributing to those overblown highlights.
(I have some physics/optics-based ideas, but I won't go that deep here, as those are just speculations, and I don't have much time to experiment with the camera to confirm them.)
2. During the night time the camera constantly catches a reflection of the console display (radio etc.) in the windshield (see the snapshot). (CPR doesn't seem to have any effect) Any suggestions?
Repositioning the camera and tilting slightly down seem to have got rid of that. At least, I no longer see it in the recent footage.
3. I see that while I was setting it up, I must have pushed some button and ended up having two photos in DCIM/Photo. How can you take a still shot? (I was not doing any time-series) I couldn't find that option in the manual.
Figured that out. Thanks to all who suggested the button.
4. Is there a way to save a frame from within the camera, without attaching the camera to a computer?
That doesn't seem to be possible.
I would like to thank everybody who contributed - for the suggestions!