Most techs in dealerships get paid flat rate , in other words if a job calls for 2 hours and I complete it in 1 I still get paid for the two hours.
The PCV valve is located in the valve cover and will require you to remove crank vent tube from the valve which is screwed into the valve cover,once removed you will have no option to replace the pcv as the locking mechanism is damaged during removal.
Good luck