It was so cold that...
...I couldn't feel my feet or man parts after 30 minutes
...My water bottles froze at the nozzle at 45 minutes, so I had to pull over and remove the lids during water breaks for the remaining 2.5 hours
...the coldness of my man parts prevented me from detecting horrible chaffing. My next order of business it to search the forums for a solution and preventive measures, because I am in bad shape today.