Entering the building was easy.
Once he slipped in, Kyle accessed from his memory banks the blueprint of the building's inner layout. He then changed his clothes, put on a wig and shoes. Going out in the bright corridor with his dark ninja outfit would basically be screaming "INTRUDER!!".
As Kyle walked to the records room, he kept in touch with Kay who would swap the image with still pictures everytime Kyle walked by. He would also look down and face away from the camera in order to minimise any exposure.
Neither Kay nor Kyle took each other's skill lightly, but they also would not take it for granted. Though Kyle was confident that Kay would hide his tracks, he wouldn't be complacent.
Kyle reached the records room without any trouble.