Sweet.
That study regarding the dice vs driving was a waste of time and money. They needed to do a study on the dice vs IMPAIRED VISION.
CA outlaws anything hanging from the rear view, because of impaired vision. Same goes for stickers on the windows. Technically the only place you can have stickers is in the lower left corner of the back window. I think its 5" max.
It doesn't matter if your vehicle is from another state as well. All CA vehicle laws apply to vehicles in CA, regardless of its state. Keep that in mind if any of you are coming to CA.