No one answered here but if you are still needing your answers. Yes, you really do have to be inside the park, not in the security line, not at the front gate waiting to get into the park but actually INSIDE one of the parks. After you're in the park and you've logged in for the first time, you can use it anywhere the rest of the day. When we were there in November of 2018 it was SOOOOO worth the extra $$$. Wouldn't do DL/CA without it ever again.