You would think they keep waters in their fridge in the trailer. Would have been easier to just go in there and get them.You have to remember, they have a huge truck and pulling even a bigger camper on the back. There isn’t many places that vehicle is going to fit, especially around a Cabela’s and shopping mall with nail salon. Asa probably just seen the Firehouse Sub within the parking lot and ran in, grabbing some waters, after being parched from walking around/shopping (plus Abbie was probably signing drink and grunting because she was thirsty too).