I'm so sorry. Is there anyone who can help you with the incubator while you are gone?
Hopefully since the temp was so low the eggs haven't started growing yet, especially if you don't see anything when you candle. Look really, really hard. How long will you be gone? A day or two?
If you will only be gone a few days, and you don't see any development at all yet, maybe you can just unplug the incubator until you get back, then plug it back in when you get home. It's not the best solution, but it may be the only one you have.