I would consider adding a triangular bandage which can act as a mask (yes the N95 is of course better), and could act as compression or a fixative for the gauze over wounds. If the Datrex water bag is refillable, a small vial of poviodine could be used as water disinfectant and wound care, or just swap out the anti-bacterial wipe with a poviodine prep pad. Would you need the flashlight if you would always have the Photon light on your key chain? That would free up room for a garden bag (poncho or bag to carry your important items if you had to leave your car).

Eric