button the hives up tight so nothing can get into them. then on your upcoming warm day, clean the dead bees out and off the frames.
i don't freeze any frames. i have an outbuilding that used to be an old milk house. it stays relatively cool and dry through summer months. all of the equipment is moved to this building and stored, stacked on pallets, frames and all. i utilize plywood cut to fit the boxes, so used as top and bottom covers, and sometimes in between supers.