Actually certain types of electronics do falter at lower temps... every "computer" has a small oscillator chip inside that is somewhat sensitive to lower temps. A bit of body heat may help... if you can remove the unit and warm it up a bit, it may start functioning.

LCDs also can become quite "dim" in cold temps, and may black out from excessive heat or direct sun exposure.

Batteries are a chemical process that requires some moderate temp.

Yeah if it's cold enough... stuff may not work.