> Also why didn't you use shelter facilities, were they too crowded, unsafe, or had onerous rules?
Yes, thank you for asking!
Before arriving in the Phoenix area, I had been homeless in San Diego. Most of that time I lived in Father Joe's Villages. That was a very well-run, clean and strict shelter. They had wraparound services, with a cafeteria, job-search space, etc. They did turn us out on the streets during the daylight hours. I must say that I almost enjoyed my stay there, and in fact I made friends, and I felt very safe under their roof.
Contrast with Tempe, Arizona: Tempe, in 2000, did not allow any homeless shelters within the city limits. They also prohibited "soup kitchens" or any church or facility from feeding hungry people. However, Tempe has a larger population of drifters and street people, due to the college-town, party atmosphere, especially downtown.
In contrast, Phoenix has a very large St. Vincent de Paul facility, which doles out supplies and serves meals, and which is several miles south of downtown, in an industrial zone. The main homeless shelter campus provides a SVdP cafeteria, job services, and all that, but when I arrived there in 2000, it was very scary, bad neighborhood, very bad experience, and I basically could not stay there in good conscience. I did not feel safe inside, nor walking around the environs.
Therefore I split the difference, and stayed on the streets of Tempe. It was libraries during the day, and 24-hour diners at night, as much as possible. I napped on benches that were not in parks. (The city park facilities closed at midnight at the latest; they had Park Rangers serious about sweeping them out; the sprinklers would drench you if you were anywhere near the grass parts!)
Being that I was in "The System" and confidently on a waiting list for housing, it was not difficult to slip through the shadows for a couple of years until that housing promise became reality.