The weather is supppse to break here by Thursday. At least get back above freezing and low 50's on Saturday. I wouldn't be scared to transport a snake in this weather. Heck you could craft a transport box made from a Styrofoam cooler. I wouldn't even mess with heat packs. Pick up a 100 watt power inverter and plug it into your cigarette lighter/12v outlet. Put a small 8 watt UTH in your cooler with a thermostat. Place a digital thermometer in the cooler with the display on your dash and you can monitor temps all the way home. My emergency heating system is set up this way with 12V gel cells and access to deep cycle batteries if needed.
Glad you liked the pictures.