Mike,
I'm in the same bucket, except I just dug everything up before the hard freeze on Sunday. I had these in pots last year, but that's really just not an option anymore at the size they're getting
I'm just putting mine in a 60 gallon tote in the corner furthest from the lights and heat, up against a north wall, keep them dry, and hope they decide to hibernate soon.
Only 1 of my half dozen clusters of Elephant Ears actually made a bulb this year, the rest are all roots and stem, so I put them in with the bananas (basjoo and zebrina) in hopes they also go dormant.