Inevitably there will be a disaster of some kind and generators will be required to help people but whoops all the generators are gone. And the officials will

Inevitably there will be a disaster of some kind and generators will be required to help people but whoops all the generators are gone. And the officials will say "well there's no link between our dumb law and the lack of generators! people should have bought batteries!" If this sounds unlikely to you consider their response to the shortage of trucks and cargo bins piling up at the ports.