A: Haha, SAME! Except I don’t dig mine up anymore unless I’m wanting to split them to thin them out.
I treat anything that grows from bulbs, tubers, or rhizomes the same. It is best to leave them alone as long as that foliage is green. Reason why - those leaves are capturing sunlight and photosynthesizing, providing stored energy to that underground structure. The more energy it gets now, the better the results next growing season.
Given that some cold weather is soon arriving, I’d say go ahead and cut the stalks down. I pile them in a corner of my yard for wildlife habitat! If you want to dig those and elephant ear bulbs up and store them, you can. But I think they’ll do just fine left in the ground in the Atlanta area. Just mound mulch or shredded leaves over the bed they’re in for insulation.
One word of caution though... if you had issues with canna leaf roller eating leaves this summer, remove all the debris from the site once you cut them down to prevent the pest from overwintering in the area.