The company is responsible. Waymo should get the citation.

Arizona law does allow officers to give out tickets when a robotaxi commits a traffic violation while driving autonomously; however, officers have to give them to the company that owns the vehicle. Doing so is “not feasible,” according to a Phoenix police spokesperson

I'm not sure why the police say it's "not feasible" to issue Google a citation. Google are the registered owners of the vehicles and thus responsible for any actions it performs, just mail them a ticket?

I’m just speculating, but there is probably a very efficient workflow for sending a ticket to an individual (given the number of tickets written and the revenue it generates), and I wouldn’t be surprised if the workflow doesn’t accommodate an AI operated vehicle. Kind of like how a restaurant would need to restructure its workflow to accommodate DoorDash.

In other words, “infeasible” actually means “would take extra effort”.

I thought the laws in the USA prevented this. It’s why you have manned speed traps because citations must be handed over personally to the driver while other countries have automated speed check systems and send the ticket to the owner of the car, and that can be a leasing company for example.