I'm told this can't be fixed. We'll just have wait it out. See if the tree will survive. Is that the case?
Edit: Thanks all. I'll replace it and properly protect this time.
Get cardboard trunk guards or some chicken wire and make a barrier. The cold is certainly not going to help, but see if it starts sprouting once it warms up and gets some sun. If it gets buds, it'll be fine.
Keep those trunks protected though until they get a few inches of width.