Your mistake there is in thinking the droid dispensing ever had any connection to where you may or may not have gone.
It is, in any case, in an area you ruled out. The significance of Wentar seeing that was to remind you that the droids' appearances are in no way restricted to areas you did not rule out. They can appear anywhere in the Repository.
[q]Andro- you have a certain amount of chaos and confusion around. Security forces are being deployed around the admin offices to prevent any attack there. You'll need to make social rolls to get anything useful done.[/q]
I've got Leadership - 1...
I'll use it best I can to get someone's attention. I'll grab the arm of whoever's closest and ask "Who's in charge in here?"