Where are they?

There is an episode of One Step Beyond on YouTube called "Where are they?". It involves 2 separate stories. But the one I am interested in is the 2nd one. https://youtu.be/mKrt6rREmYA?t=652

{caution: spoilers ahead}
Did this really happen?? Like they claim for "One Step Beyond" episodes? So a guy approaches some cabinet member of the Federal Government, after draining the gas out of his car, and pours water into the tank from a garden hose, pops in his pill and the car runs?? And then later he meets these 3 experts in their field and he shows them all that his pill that turns water in some kind of combustible liquid actually works to run an internal combustion engine, even though it is to them impossible. And then he asks for 10 million dollars for the formula. And then the cabinet member asks him to leave the room to confer with his experts. And then he goes out to retrieve the guy and he is GONE! They totally had to believe it worked and would have paid him what he wanted and he just left?? And they got his fingerprints and the FBI looked all over for the guy and they could never find him??

I mean, if this had been something that happened to some random joe on the street, ok, you can dismiss that. But this supposedly happened to a member of the cabinet of the U.S. government! Where is the documentation about this? I mean, in the dramatic recreation on this OSB episode, they sure looks like they take the kind of precautions that needed to be taken to be sure the guy wasn't scamming them. Did that all legitimately happen like that? Who is the cabinet member? Maybe he wrote an autobiography and I can read about it happening to him? Maybe it was written up in a report that is in the national archives?

So its likely one of these guys: https://upload.wikimedia.org/wikipedia/commons/thumb/0/04/Wilson_Cabinet_2.jpg/1920px-Wilson_Cabinet_2.jpg

Secretary of State Robert Lansing, 1915
Secretary of the Treasury William G. McAdoo, 1913
Secretary of War Newton D. Baker, 1916
Attorney General Thomas W. Gregory, 1914
Postmaster General Albert S. Burleson, 1913
Secretary of the Navy Josephus Daniels, 1913
Secretary of the Interior Franklin K. Lane, 1913
Secretary of Agriculture David F. Houston, 1913
Secretary of Commerce William C. Redfield, 1913
Secretary of Labor William B. Wilson, 1913