How do these people survive? Part 4

I recently saw a distraught young lady weeping beside her car. 'Do you need some help?' I asked. She replied, 'I knew I should have replaced the battery to this remote door un-locker. Now I can't get into my car. Do you think they (pointing to a distant convenience store) would have a battery to fit this?' 'Hmmm, I dunno. Do you have an alarm, too?' I asked. 'No, just this remote thingy,' she answered, handing it and the car keys to me. As I took the key and manually unlocked the door, I replied, 'Why don't you drive over there and check about the batteries. It's a long walk.'