How interesting. I just had transplanted a Crepe Mertal tree mid October. I had a difficult time getting it out of the ground without disturbing the deeper root system.
Almost immediately after relocating it to my backyard, the leaves all shed! And I live in a milder climate so it was not the change of weather. It was still in the 70's when I moved the tree.
I have no doubts that it will come to life this spring with new leaves.