It should be fine if you put it back outside. I'd place it somewhere moist in some bushes near trees, where there is some leaf litter if possible. When it gets really cold they will tend to hunker down in leaf litter, or in crevices. Release it at dusk or at night, and when there isn't much wind. That way it will have a chance to find a safe spot without being seen by predators, and it wont desiccate as easily.