It's a Ford thing. They have bright headlights on most of their cars. I guess if you wanted to you could adjust them and drop the beam down a little bit. I get it in mine every once in a while. I wouldn't worry about it. I just bright them right back with pulling on the passing beams so to have the highs and lows on at the same time. When I had my f150 4x4 I got it alot. whenever they'd bright me I'd just hit the brights and the KC floodlights on top.
I had a semitruck do that to me on the highway once when I was in my truck so I flipped on all of my lights and could tell the color of his interior from about a city block distance away.
------------------
1996 Mustang GTS