Passenger was smoking during the entire drive, saw smoke floating out of the open window. When there was a line of traffic in the park, the passenger threw the cigarette butt out the window, and it was still smoking. It appeared as though it was not fully snuffed out. There are many dried leaves, branches and twigs all along the road in Golden Ears park. The fact that it was in the middle of the park, filled with forest and potential dry areas, was very concerning.