[Timshel]

Not from the us but I would not expect a car to have priority at a right turn.

[tzs]

He said it was at a right turn light. That suggests an intersection where there is a specific traffic light for controlling right turns.

Those are usually synchronized with the walk signals controlling the crosswalks that the right turns will cross, so that the car does not have a green at the same time the pedestrians have a walk signal.