Serious question: Are there trailer parks in the area? A place where you can rent land for parking a mobile-home long term?
I am not at all familiar with the SF/Valley rental market, other than hearing how it's exorbitantly expensive and rents keep growing. I'd have to think there would be somewhere where rents are not so expensive. I have a hard time believing a standard suburban studio or one-bedroom apartment would cost $2800.
As for the article, it sounds like the man profiled here isn't really making rationale decisions, so it's difficult to tell how bad the situation, outside of this anecdote, actually is.