Final answer:
The question about the farthest distance Franz can drive without missing an appointment in Salton City requires information from Jon Krakauer's 'Into the Wild', which is not provided in the excerpts.
Step-by-step explanation:
The passage from Jon Krakauer's Into the Wild does not provide explicit information about the farthest distance Franz can drive without missing an appointment in Salton City.
The question seems to pertain specifically to Krakauer's narrative within the book, which is categorized as narrative nonfiction.
If such a detail regarding Franz's travel limitations exists in the book, it is best answered by referencing the specific section of the text that discusses Franz's appointments and his arrangements with Chris McCandless.
However, based on the provided excerpts from various narratives and not from Into the Wild itself, there is no direct information about Franz's driving distance to an appointment in Salton City.
To answer the question accurately, one would need to consult the text of Into the Wild where Franz's circumstances are mentioned.
In lieu of a specific answer from the text, one might consider the general themes and ideas presented in Into the Wild to infer Franz's character and potential behavior.
Krakauer's work often discusses the theme of personal journey and the choices characters make to either engage with society or distance themselves from it.