I remember driving my friends old rt10 with no traction control and no ABS. The 335's in the back would just spin at 80 mph in 2nd gear, it was a frightening car and I loved it.
That really is not that cold to need a higher CCA rating. But ya scott, time for a new battery and a winter coat in the trunk. Glad you did not die of frost bite.
I haven't tried the barefoot run yet. But I might do the Vibrams. I do about 20 miles a week and I switch from grass and asphalt runs. I can see how barefoot would be better.