Though I do agree with you: I recently took a job with a self-driving car co, and am starting shortly (due to the technical challenges and great pay); but the assumed timeline most people are operating under seem pretty optimistic to me. That being said, I think much of the industry isn't expecting fully autonomous vehicles until at least the 2040s.
I rarely (if ever) see them on the westside where the roads are nice, logical grids but mostly Tempe, Scottsdale and Chandler where they aren't so nice and neat. Nothing like driving around SF admittedly.
Edit: Yeah, here's an article that mentions it. The governor came under fire for it when that uber car killed the pedestrian.
"Other than the mountains in and around the city, the topography of Phoenix is generally flat, allowing the city's main streets to run on a precise grid with wide, open-spaced roadways."
Grandparent's "damn near perfect grid" comment also jives with the layout of much of Phoenix.
I doubt our technology is ready for that.