I have a '14 Wrangler that I tow. Just in case you didn't realize it, one of the great things about towing a Jeep is that once you've gone through the steps with dis-engaging the transmission, you can take the key out of the ignition and lock the doors if you want to.
Early on, I didn't realize this, and I was going through the extra step of disconnecting the battery. Turns out this isn't necessary since you can just take the key out and the steering won't lock up.
Jeff & Kris
2016 Foretravel Realm & 2014 Jeep Wrangler