This situation does not sound too hopeful. If the twigs, branches remain pliable and green just under the bark, then there is still life in the evergreen. Any other color than a moist looking green is telling you the tree is failing or already dead. Examine the branches and back into the trunks looking for good color. If these plants carry a warranty, inform the retailer now so that they can be examined. Transplant recovery is very hard on plants and especially evergreens. There are many factors that impact how well a plant recovers such as site, soil, water holding capacity, sunlight, etc.