The pars were an initial general consensus for what to start with, made by the main parties involved. They are not final, as time will certainly spell them out better. There are longer positions on several holes which are harder by a stroke degree... but there wasn't really time (with the event and opening all happening within a few days of the installation) to develop signs and scorecards that represented all of the individual placement pars just yet. We were happy just to have accurate measurements on the 2 sets of existing pins in time to get those on the cards and temp signs.
I'm sure it will all be adjusted for the real world over the next month or so. There will also be more pins being installed as the year progresses, so those will have to be taken into account too. At the very least, I'd say that 2 (508' well guarded), 10 long (606') and 11 long (690') generally would qualify as a par 4. Again though, we'll see how scores play out and determine what is actually "par for the course"
Yeah, the navigation is a bit wonky... but all due to the facts of working around such a well established existing park. Sorry you didn't get a scorecard map... hopefully this helps for the next trip.