I always find this sort of lack of flexibility a little disheartening. Where is the customer concern? Where is the humanity? Surely, offering a post cutoff patch would go a long way to generate goodwill and publicity.
Though playing devil’s advocate, it might raise future expectations and even set them up for legal challenges if the good-will code has some unforeseen side effects. No good deed goes unpunished, etc.
Probably best just to say “fk it! yer on yer own!”