so they can't induce movement of the vehicle, at all, ever?
that's probably fine then
but if they can at all: they need a driving license
it is not unreasonable for a state to want to control who is allowed to move around 1.5 tonnes of metal in a public environment
I have no specific knowledge of the law or the tech requirements here, but I don't think that the state of CA makes Google get CA driving licenses for its phillipines service employees.
This is analogous to a situation where a passenger in a vehicle, for example, asks the driver to pull over or to drive to a given spot. I believe the passenger does not need to have a driving license to perform this task.