

For future reference, here’s your proof its possible to be remotely moved, which means a hacker could exploit it.
In very limited circumstances such as to facilitate movement of the AV out of a freeway lane onto an adjacent shoulder, if possible, our Event Response agents are able to remotely move the Waymo AV under strict parameters, including at a very low speed over a very short distance.

From the description it’s really not meant to solve that. In a situation like that they’d have to send someone, but they would be able to get out of the middle of a lane, off to the side, even if that only gives an extra foot or two of space to pass the vehicle.
Edit: And that’s assuming their remote helpers couldn’t direct the car to drive itself out using their other tool where the AI drives itself with their suggestions.