What color was there boat and were you able to make out the CF#'s since they were only 10 feet away? Next time if this happens again, you can drive over to the lifeguard house/shack (The old boat rental docks) just North of Sailboat Cove and alert and report it to the lifeguards (They are like your lake police for the PUDD) and they will definitely get on it quick and straighten them out with a warning and record there information so if they get caught doing it again, they will get a citation.
Also, Congrats on that beautiful "PUDD" Pig.
Tight Lines....
JW