Bare root trees and frost

Hi
I am about to take delivery of some heavy standard bare root trees, should I be concerned with the frost?
It was -5 this morning, could this kill them? I will not let the roots dry out before planting but Id hate to think they could be killed before I get them in the ground.

Thanks
P.

Have no fear, they will be fine. Heal them into the ground as soon as you can. Plenty of support if the site is windy. Best of luck.

Thats good, I would hope to have them all planted within 2 days, but I wouldnt bet on it.