Things you may not have noticed (spoilers ahoy!)

[cantremember]

If you lock Akers in a room, I think him escaping eventually is an unintentional consequence of his programming. He disappears and respawns closer to you a short while later if you go too far from him, effectively teleporting him out of the room he's locked in.

It is noticable if you are in one of the rooms and he roams the hallways. The footsteps, interference and his howling noise all abruptly stop after he walked past. Then a short time later you will suddenly hear him again and he will arrive from a different direction, physically impossible for him to have went around that quickly.