It begins with the fact that the world is described in a small town in the southern United States, as they are "in order" is yet. That looks so that the parents are not satisfied with the new boyfriend of her daughter. "'I'm thinking of shooting her boyfriend later today.' Bob roared with laughter. 'Maybe it's best I did not have daughters,' Bob finally replied. 'Sons, yeah. ...' "
So as you can see the same, tick the protagonists of this concoction. Unsympathetic Rednecks.
Accordingly, their response to the EMP bomb that detonates. Although they still do not know who has the shot and why, but the reaction is in itself equally clear: "We'll flatten the bastard for this".
There remain then almost all cars are where they are. The exception are some very old cars without electronics. With these cars the protagonists go then also everywhere, even if they could take a bike because there are only two or three miles. That all other people view them with big eyes, it does not interfere. When someone wants to take away the car, well what you have firearms and his fists.
Incidentally, to p.95 never explained where and especially how they refuel because, and why they make do not worry about that you should save fuel maybe by just not everywhere goes there by car if you do not know how to get supplies again.
Quite apart introduces EMP does not mean that all cars are defective. Some maybe, but not all. The reason for this is that a car is a Faraday cage, and such a protection against an EMP.
Well, but since all the cars stop in the book, of course, people from outside come now walk in this redneck town. One of them goes to the pharmacy, because he obviously urgently needed medicine. And the employees, in the book their "instructions" or "commands" like all people and moves away not step away, refuses to come out the drug without a prescription.
Well, the obvious solution would it actually to send the customer to a local doctor. But no, not in this book. Since the great protagonist takes a heavy glass bottle from the shelf, she pulls the customer over the head, while still injured by the hand (the wound is described on the following pages again and again), then the customer is bound with tape. "Listen to me. You threatened this women. One more word and I will cut your eyes out."
In other words, this is a book that the world definitely does not need. I hope it buys me now from someone anyway. And I really do not know if I want to travel again in the USA if there can be a bestseller such a book. After all, I'm then a stranger there, as this customer in the pharmacy.