I wonder how hard it is to get at the bit that drives the screw pin, and just wind it back with a wee battery? You know, the way you get the "security locked"

I wonder how hard it is to get at the bit that drives the screw pin, and just wind it back with a wee battery? You know, the way you get the "security locked" electric handbrakes on high-end cars to release, when the electrics are dead?