Oh no! :o At least you have some spares.
I'm hardening mine off too - but to be honest I always leave my plants outdoors 24-7 when hardening off. Normally I just trust that as long as they don't have the shock of transplantation and they're near the warmth of the house bricks, they'll be ok. So far it's worked. I don't have time to bring them in and out everyday.
...Hope I'm not proved wrong this year! :)