"What about the police, firemen and paramedics? Do they have cars or trucks?"

"Yes. You'll see them on the streets sometimes. Those services are provided by Knox County, and paid for by our property taxes. We have a police station, fire station and hospital in town."

"What about deliveries from the post office or UPS or whatever? Are their trucks allowed in town?"

"No," Crystal replied. "There are eight mail centers located around the edge of town. All deliveries go to the mail centers. Everyone has a mailbox at one of the centers, and there are lockers for bigger packages."

"That's interesting. There's no home delivery of mail?"

"Nope. You...