We only had one very minor frost, two leaves got burned and I had plenty of leaf cover to protect the flowers. Mine are also in a place that doesn't let them wake up until late.
The new ones may or may not react like that, they'll have the reflection off the house warming them so they may wake up early and get frosted all the time.
I'm kind of amazed yours didn't send out a back up plan, I've heard of grapes doing that.
Petroleum based knitter, removing that nasty oil from the ground one skein at a time.