JUST IN: After regulation dispute in California, Uber sends self-driving cars to Arizona. pic.twitter.com/WbcyWgYdqb
— CNBC Now (@CNBCnow) December 22, 2016
Uber didn't exactly buckle. California revoked the registrations on their self-driving vehicles, making it illegal for them to be on the roads.
Apparently they don't have sanctuary cities for undocumented vehicles there.