I may not have read the previous 1 or 2 chapters before this ( I think it was blacking out at the doctors table). I think the main character should keep track of this event, snap a picture of the place inside if able (if the door is still accessible and try not to go full in) and get on to figuring out what's going on or finding out the true purpose or motive the company has in store.
RE: Inside the Company: Chapter 5: Blank Space