No, not as far as I know. You transported them fine. IF they had been in the back of a pickup truck, and were not covered, just the steady wind of going 50-65 mph would dehydrate them and they might not have survived that. But as I suspected, the trees were likely "dead" when purchased. I assume they were planted at the same depth as they were growing in the pot and that they are sitting in a pool of water (no drainage), right?
The death of an evergreen is fairly straight-forward and predictable, simply by the way those evergreen branches begin to die back. The one with a good bit of green might make it though. Don't fertilize that one until you start to see new growth in the spring.
