It's tough... I have lost whole shipments before. Sometimes they are all dead before you even open the box... it's sad.
Good luck with the remaing few hopefully they are strong enough to overcome the stress.
I would definately get a new shipment. I've shipped chicks/poults and you can't blame the hatchery as it's not something they are doing wrong. I can only recall one time when McMurray had problems and they recalled everyones order... but your talking hundreds of orders not just one or two. I...