Freezing them seems to dehydrate them, in my experience. Every time I'd thaw a new one out, it'd be dryer than the last one was.
Seems to me that doing so, over and over, would produce super, dry and crunchy.
Actually, I know it does. Weed should be room dry to start with.
If you've a pilot lit oven, you could thoroughly dry it in there overnight?
If you're not in a big hurry, just an airy, warm spot should work after a few days?