Cold makes leaves limp, leathery...

[the yuk event]

Hey there everyone!

I have my Phalaenopsis sitting on a window ledge and last night the window got left open. We just had a massive cold front come through and the temperature got down to -10 degrees. This morning I found my orchid with some problems, I'm sure caused by the cold. The leaves have all gone limp and they have a leathery texture to them. They're also a bit wrinkled and dark in color. If I take the orchid away from the cold, will it heal and go back to normal, or might there be some permanent damage here? Thank you.