Daft Question I Just Remembered

The general issue has RB guidance -
9.6/4
Ball at Rest Played and Then Discovered to Have Been Moved by Outside Influence; Ball Turns Out to Be Wrong Ball
If a player discovers, after playing their ball, that it had been moved onto the course by an outside influence after the ball had come to rest out of bounds, the player has played a wrong ball (see definition). Because it was not known or virtually certain at the time the ball was played, the player does not get a penalty for playing a wrong ball under Rule 6.3c(1) but might need to correct the mistake by proceeding under Rule 18.2b (What to Do When Ball Is Lost or Out of Bounds) depending when that discovery is made: