Very badass, good work!
I biked in today on the coldest morning of the year in the area (21, wind chill of 15, yes I know many of you have had worse already!), and it really wasn't too bad. However I will probably wuss out and drive the next two days. There's supposed to be a nasty rain/sleet/ice mix, and, well, I'm not a masachist!
(Plus, I don't know how to bike in icy conditions)