The option is possible, but too fantastic for this stage of the game. I'm still betting that the Administrator activated the antenna so that Kirito wouldn't go around the corner of the house and find out the truth ahead of time (one of the antennas was built right behind the house), It seems to me that Inoda has nothing to do with it at all. As usual, Inoda's luck was that Asuna made a sound at the wrong time and forced the Administrator to act, as she saw what was happening from inside Kirito's head.
If the "gigachad-mode" can be explained by the fact that the Administrator switches the personality in Kirito's head, then Inoda's ability to "refract and stop sound and light waves" in the real world is already impossible to explain.