After the movie came out, they had them drive out from the gate next to the Pacific Wharf and then drive up to across from Golden Dreams where they parked and did a meet and greet. I never heard of any issues when they did that. I would think they would do something similar to this in Cars Land. But it might be more difficult since Mater is supposed to be at his ride as an animatronic. I guess Lightning McQueen could be around though..