No way! I'm so envious! We bought a pair of adults and they like my husband.I'm back home and my geese are doing great.
So to answer my original question, yes, they can survive - 30 degree weather just fine.
I walked into the barn and my goose ran towards me as fast as she could. She then snuggled up in my lap and began telling me about the awful week she's had. She missed me and I missed her. My gander also walked over and snuggled up next to me. I love my geese and I wouldn't trade them for the world.