What made you ask this question in the first place? Have you tried to use your machine but its not operating as it should? If so, what is it doing? or not doing?
I do hope your machine was waterless at the time is was in the garage during those low temps. Take a look at this thread
Can someone ID this Faema? It talks about freeze damage. It's not very long, only about 10 posts long. Have the dials spun around? This could be an indication that something went wrong. If youre handy, you can take the machine apart and fix it, no worries you can do.
We all hope for the best.