When looking for your picture on the website, click on "time lapse". The webcam pics will cycle though about 30-50 images. Then change the "Every" drop down box from "On the hour" to "5 minutes", and click on "Rerun". This should load about 400-550 images, so be patient, it could take a few minutes.
Once the images start to cycle though, you can click on "Stop" and then click on ">>|" to skip to the last image. Then you can click on "<" several times to view each picture going back in time until you find the one with your vehicle in it. (Time from the website is Mountain Time).
Right click on the image, paste it into paint, and save it. Then you can log your find and post the picture. Feel free to enhance the picture in your favorite photo editor. I had to brighten mine because of the cloud cover and time of day. If you find this waypoint before noon it should allow for a better quality picture.
Locate your picture, copy and paste with your log.
Kudos to the edgewater girls on the FFTF. I see now this can be done at night.