anti theft sytem

would the anti theft system on my chrysler town and country stop the key fob
from unlocking any of the doors and prevent any of the lights including the
radio to work? would it also lock the key in the ignition? when we got out of
the store yesterday nothing worked it was like there was no power at all,
absolutely no sounds of any kind had to us the key that  was in the key fob to
unlock the driver side door. Does any one have any idea how to fix the
problem?