I get that alot in my Tundra. They have reallly good low beams for a non HID light. Luckily, they built an electronic adjuster knob inside the cabin, so I have them point as low as possible. People still flash me though and then i give the reminder of what the brights look like. For people who drive slow in the passing lane, I simply put them back at the level setting to let them know to get the f*ck out of the lane unless passing.
The fogs for the Mustangs are really bright though, but I still run them.