Even if the law says that Uber must admit taxi inspectors, it's hard to say Uber's breaking the law if the inspectors don't "show their badge" or otherwise identify themselves as officials.
Of course if they do show their badge, there's a great incentive for Uber to say "Sorry, no drivers are available in your area" even if this is not really true.
So you have this curious cat-and-mouse game where the taxi inspector pretends to be somebody else, and Uber tries to penetrate the facade.
That would make sense if they didn't go out of there way to identify potential investigators and law enforcement. I don't see how they could create a system to target law enforcement and then say they didn't know they were.
Of course if they do show their badge, there's a great incentive for Uber to say "Sorry, no drivers are available in your area" even if this is not really true.
So you have this curious cat-and-mouse game where the taxi inspector pretends to be somebody else, and Uber tries to penetrate the facade.