You finish in a closer parking lot to the park entrance then the one you'll park in, but you could go back to your car easily to get your stuff then go into Animal Kingdom for the after party. I didn't check a bag or need anything for after last year so not sure how quick bag check was. The ride lines did get long last year (well not Kali) as more and more people finish, so going back to the car could eat into more ride time than just getting from bag check, just a thought.