Was this mechanic wearing a mask?
Is his photo posted at the local Post Office, along with the other thieves?
As you can probably guess, I really think that the OP got “hosed” by this guy, and I am as puzzled by the $200.+ “Emissions Service” as everyone else is. And, as was said, replacing the cabin air filter on this car should take all of about…3 minutes. However, the extortionate charge for the cabin air filter labor was really no worse than the other ridiculous labor charges on that bill.
When I get the 30k service done (at a dealership), the total of the bill is slightly less than what the OP paid, but my service includes changing the brake fluid, the transmission fluid, and the coolant, over and above the legitimate procedures that the OP had performed. Even the 60k service, which includes spark plug replacement as well as all of the aforementioned procedures, is not much more than what the OP paid.