12pm-12:45pm (1pm at the latest) -- Meet under the lift hill of Grizzly River Run in Disney California Adventure. If you get to the parks earlier and can get fast passes to Radiator Springs Racers, feel free to do so. Collectively as a group, I'm not sure if they'll wait in that line but it's always an option.
1pm - ? -- Probably lunch somewhere, then hang out, rides, etc.
6pm-7pm -- Dinner at the Paradise Grill and Boardwalk Pizza & Pasta. Try to meet at the tables closest to Goofy Sky School next to or inside the old P.T. Flea Market gazebo.