When do they arrive?

Two days later

Both Pinkie Pie and Maud arrive on pods being carried by drones, at the same time the punishment items Valk had ordered arrived.

Deciding to get both of them out by pushing the wake them up later option, Valk has a hard time carrying them up the stairs, but she manages to take them both up to her disciplining rooms, where she tied both down in separate rooms.

The punishment items were taken and stored properly, then she took the time to put up cameras on each of the disciplining rooms with monitors to show the characters what she wants.