dontfancythisputt
Club Champion
If it helps the OP, on Ashdown Forest (old) a partner hit a similar shot, it hit the ladies tee marker flew past everyone at head height and ended up on the other side of the hole running behind. A par three was now playing as a par 4 and a shot already used. Think he made 7 or 8 in the end.
Seen very simlar thing, playing partner hit red marker, ball goes a good hundred yard behind us all. Started as a 500 yard par 5 now its a 600 yard par 4! Oh we laughed! 3 of us did anyway!