7-Stud ruling question

[MichaelOar]

7 card stud hand:

Guy checks blind on the end. I bet. Guy looks at his down cards, looks at the board, looks back at his down cards, and says "you got it." He then scoops up his board cards with his three down cards, so he's looking at his entire seven-card hand home game style (so the backs of all his cards are facing me).
I ask, "Are you folding?"
He says, "yeah, you got it." About two seconds later he says, "Oh, wait a minute, I raise!"

I call the floor who says . . . ?

Thanks,

Michael