Ride home last night was dark, and cold. I was running late all day long yesterday - late leaving in the morning, late eating lunch, and late leaving the office at 4:55. Didn't make it home until 6:15. Wife wasn't too keen about that.
I had my GoPro running for the full morning commute, and with a 32GB card that left only about 55 minutes of video available on the card. So I just turned the camera on and off several times going home, mostly during the sections with the most traffic. I found out that on dark rural roads, the camera is darn near useless. It picks up the small area where my front light shines, and that's about it.
Also I was having problems with the mount letting the camera tilt forward, and it was vibrating so much I wouldn't have been able to get any useful license plate information even if I wanted to. Here's a sample from yesterday morning: