Thank you everybody for your help. I pulled the ribs off the egg at 1 pm, spritzed them with apple cider vinegar wrapped them in foil and put them in the cooler wrapped in a towel. We didn't eat until 5pm and the ribs were a perfect temp and texture! I need to learn to not stress. But cooking for Mom is always tough because she's a pro! She liked the corn bread and potato salad too! Thanks again for all your help.