The thing is you have weenies like us clearing huge amounts of fluff every 6hrs and then the general public sticking the yardstick into the driveway at random times. When the PNS is showing a handful of reports a bit over 20” for the high range in a populated county and then a report comes in of over 30” it definitely stands out. That Wilmington 22.5” cocorahs report is just as fishy with about 3.00” of liquid reported. They reported 21.4”/2.75” for 7a-7a....I don’t think so. The other Wilmington cocorahs only reported 17.8”/1.22” for 7a-7a so the obs are all over the place.
But you’re going to have trouble with people actually believing it since even the highest cocorahs reports are 20-25”. It’s simply just differing methods and that’s the nature of the beast. You’ll just have to deal with the skepticism.