It depends on the department and the officer's mission. If they are having a ton of problems with human trafficking they will start using pre-textual stops to s

It depends on the department and the officer's mission. If they are having a ton of problems with human trafficking they will start using pre-textual stops to search for that. If you are assigned specifically to traffic they will focus on reckless driving, distracted driving, drunk driving, or whatever is the huge problem that week. With regards to traffic infractions for self driving cars, I imagine that it would be an overall license for specific manufacturers or companies. If Waymo is causing problems then they could lose their license to operate in that jurisdiction. For personal vehicles like Teslas they would lose their personal license or just be plain banned from operating.