In the theme of this thread, I have factory HID's in the '16 GC with the hi/lo shutter, no separate beams. They are auto-levelling and I've only ever been flashed once, and it was coming around a corner, which was understandable.
Last night, coming home from a friend's place on a dark two lane country road I happened upon what I believe was a Hyundai Sante Fe. I kept typical following distance, but he/she kept speeding up and slowing down, particularly around corners and so I was hoping to find a location to overtake. As we passed through a very dark section, he turned his lights on and off a few times, hit his turn signal and did some other oddities a few times, which gave me the impression he thought I had my highs on. I didn't. I passed him shortly after and he made it a point to turn his high beams on behind me, reinforcing what I had initially assumed. When he turned them back off, I realized he was driving with his fogs on (it was clear) which of course meant he had tons of foreground light, but I also noticed that his low beams were downright awful, which I'm sure was a large part of the issue.