440c folder blade
I hardened, quenched, and cryo.
Then had a family emergency and was not able to temper after the cryo.
May I delay the Temper a few days without any ill effect?
You're taking a risk the retained stress will fracture the blade but you might get by with it-but that also means that you might not. I would try to do a least a single one hour cycle as soon as you can manage it to relieve the stress. You can go back and do the other cycles later.
I would do one cycle and clamp the knife to a piece of angle iron to straighten it and repeat the tempering cycle. You might have to shim under the blade to cause a slight counter bend. Cold straightening a tempered blade is an iffy situation with a carbon steel. I wouldn't care to try it with a stainless steel