How cold was it the day before you brought them in?

Maybe cold wind caused the leaves to yellow? Just speculating.

Are all of them turning yellow?

Do you have pics?

They had no frost, but were very dry...

I think these are pretty drought tolerant but you may have took it too far.

My intent was to transplant them and keep them in my work place, but they look so bad...

Too far? As in toss them in the trash

I would cut out the yellowing leaves and wait until spring to transplant.

I would not throw them away. They are still alive.

Don't throw them out. You'll lose some leaves when you move inside and that's normal. Just cut the yellow leaves off and hang them up again. They'll recover.

Yes, I agree, don't repot until Spring.

Jane

I agree with Jane. I recently got a very root-bound at HD's outdoor section. A few leaves turned yellow when they were brought into an indoor environment, but the yellowing has now stopped and new stolons have emerged. The plant was divided up and repotted as soon as I got them home and trimmed off a good portion of the compacted roots.

Mine have been in about a week. imo a bit of yellowing on transition is normal and they will adjust.

These guys are very tolerant. I would cut the ugly/yellow leaves off, maybe trim the roots back and/or pot them in a larger pot with some fresh medium. They will come around quick. I have had one for almost 16 years......don't have a good spot in the winter so it goes into my attached garage all winter.....little light and very cold (but not frost). Looks like heck by Spring.....comes outside and looks great this time of year!

When I worked in a garden center years ago, the owner would take a spider plant out of the pot and cut off about 1/2 of the roots with a serrated knife. The plant loved it and grew well.