This is my first group buy so I don't have a feel for the logistics. I'm picking up a sack of Briess 2-row and a 5lb split of Gambrinus honey. Something has come up and I need to be in Rockville at 11:30. I can be at 3-Star at any time. If I'm there at 10:30 (or even 10:15) would I be able to...