I had a similar experience last year at the Friday LOTO fun run the day before the shootout. We have run in that run previously, but now that I have a Formula Cruiser we got 20 minutes or so in front of it.
Knowing the run we hugged the cliffs around the 27MM, leaving 90% of the channel for the front running cats to have plenty of room.
That didn't sway a couple of them as they felt compelled to buzz us running 130+ mph.
It was cool, but it was way more dangerous than cool, and totally uncalled for.