Sacred Cactus

I didn't have room to bring my big pot of sacred cactus inside this year. There are many cuttings from it which live year-round in the yard so I figured it would be okay outside. Then it started drooping from the frost so I had my husband put it in the garage. Big mistake. I opened the garage on Monday and it had gone totally limp and dark. I thought it was dead and I felt horrible. But just now I cut it up and the heart piece, the one I got from Florida in 2003 during my shamanic training, which was already old then, looks okay and a few older chunks growing off it it look okay inside. When I cut between the growths they were still green and moist inside.
The new growth on the ends, which was very long and thin this year, rather than short and fat, looks like it's not going to make it.
The pieces I KNOW will live I'm bringing inside in a separate container. The rest I'm leaving outside (not in the garage) to fend for itself.
I wore a pair of thick plastic gloves under a pair of thick cotton/poly gloves and you know I still got spines in my fingers. Silly plant, I'm trying to help.
It's funny that I posted this today because one of the first growths off it was shaped like Manik the hand.