Begonia Harmony's 'Stormy Sunset' (formerly 'Passing Storm')

It’s not completely dead yet, but it sure is good at playing dead. I’ve had this plant in a makeshift green house for 3 days since it arrived, and it is looking no better. In fact, 2 of the leaves have since died and shriveled up. We had a bit of a cold snap so maybe it got too cold while it was in route. I’m not sure.