Some commenters have suggested that there were other shops in the vicinity, but to my mind her frightened friends would have gone to the nearest place, not knowing how long they may have, and once there would not want to give up and gos somewhere else whilst there was a chance that their first choice might still work. All the time getting more and more urgent in their minds. To suggest they do a tour of all possibilities whilst their friend is suffering is to completely fail to recognise the seriousness of the situation in her friend's eyes.