To answer your main question, it depends on what stage of development they are in. Eggs can handle a large drop as long as you don't dry them out. Open brood are the most susceptible to the cold, capped brood lose it the closer they get to hatching. I had pulled 7 supers of honey, with all of the bees removed, and left them on the patio for 2 full days, on the third day we started extracting the honey and had bees crawling all over everything and they were still hatching out. We put all of the frames that he'd brood back in the hives. We mow look at each frame to make sure there is no brood. The patio averages about 65 to 75 degrees and they were not affected. If you went from one hive to another they were probably good to go, especially if they had bees with them.