The article says the super estimated $6-8000 damage. I'd do a different evaluation. I'd take the cost of a yearly membership and all the required extra bar and food tab, etc. then divide that by average number of rounds a year, then divide that by 18 holes, to find what cost per hole for members to play, then figure out how many average weeks loss for repairs effecting average number of rounds per member. I'll bet you get a big number there. Then add in the 6-8000 it might take to fix the physical damage. I'd get the number reasonably or justifiably as high as you can, so that there will be a higher perceived loss in $$$ so that the Sheriff's office make it a high priority crime to find the vandals.
I've heard that many courses are now putting out cameras, and even night vision stuff.
What are the rules out there about public being able to walk the beaches all night? Is that common out there near MPCC? If anyone can walk those beaches anytime of day or night, and it is common to do, perhaps someone else saw it, besides a bigger pool of who had access to do it.