[CL8]

I drove my '99 Dodge Caravan to the store for the first time in three days, because of snow and ice,
when I left the store and turned on the engine, the "airbag" light stayed on, the radio, heater and turn signals didn't work.
I stopped at Napa Autoparts and had them check the fuses, they all appeared to be fine. I drove home and everything was working fine.
Could this be a problem from the cold weather (more than two weeks now) or a battery or other problem?
Thanks,CL8