Dylan's women finished going around brainwashing every employee, guard, and courtesan. They also removed all evidence of Hiro's party from the magic devices that recorded video, audio, and caliber signatures. Although the Saviors were not engineers, due to Calibers they were able to create magic device counterparts to the ones from earth.
CCTV-like monitoring systems and sound recorders were among those created. Caliber signatures on the other hand are similar to biometric fingerprints as no two people have exactly the same Caliber signature. As their targets were spread, the wives worked inside outward.
Dylan's wives started with the courtesans, then the cleaning, kitchen, and security staff before going outside the building. Thus the last group they treated was the perimeter guards. As they got nearer the entrance their ears perked up to hear amorous moans and pitiful cries.
