Perhaps you could place an air cooled tech over the lines.
lines <- tec <- large heatsink <- cold air from forward motion
basically since the air is so cold ambient, the tec could potentially go 40-60 degreees F. below the hot side of the plate. Good for moving forward, this thing would SUCK if it was at a stand still. Perhaps you could rig it to only come on from 2nd gear up, or better yet.. go to low voltage mode in 1st or N so the heat doesn't transfer back onto the cold side, yet doesn't create the heat of a full load.
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