I did find the code and investigate it through the QR code to and this is my thumbnail for my video i just don't post the links so bots wont bot the video you can find my channel by checking out my account
I would make the gray screen some type of glitch Easter egg or rare event where the guy is gone and he starts to pop up like a hand and have a scary face slowly pulling up to the screen, and then the game glitches back to him asking a question or just the yes and no.