However, do be aware that your Boarding Group is tied to your PAT. So even if you are on the first bus, if your PAT is later, you will get a higher Boarding Group and will be watching as others who arrive after you but closer to your PAT board the ship. I saw it happen to a family checking in next to me two years ago. First bus, but had a much later PAT and had something like Boarding Group 26 or something.