hello, I will tell you that I kept my first potted fig indoors in warmth by the window for years, worried about it's fragility and youth, and it would leaf out in winter, but never produce figs, no matter what. Clear lesson: dormancy and chill hours are imperative. I lived in Alabama so I know what your winters are like, they are fairly benign. An insulated, unheated garage will do great. I water my pots at least once a month during dormancy, just a spritz out of the watering can. My figs endure 25-30 degree F nights and have never had an ounce of dieback. I do not wrap them, nor would I recommend you to do so since we are in the same zone 7b, even though I get colder winters by far. If by chance there is a really cold snap I might bring younger, smaller pots indoors until the really bad cold passes, and I certainly will do that with my smaller specimens this winter. But put them back out once the cold snap is over. Good luck!
Rafael