Blinded by the light

I hate driving. And I especially hate driving at night. Driving in the city is bad enough, but it's worse out in the middle of nowhere where there isn't much light. Not only can I not see as well, but there's no high-beam etiquette anymore. It sucks being tailgated by some asshat with his high-beams on. And they don't even have to tailgate you for it to be annoying. I've had people behind me a quarter of a mile or more and they're stupid headlights were still blinding me when they reflected off my mirrors.

Last night I was on my way to work, miserable as usual, since I hate my job. Often I have the highway to myself, but occasionally I have to deal with other cars. As I drove, I noticed two cars far behind me. The highway is four lanes and these two cars were driving side by side (something that always irritates the hell out of me because it's so stupid). Both, naturally, had they're highbeams on. I wondered how long it would be for these idiots to reach me. It took longer than I expected, but eventually they got on my tail. I slowed down and hoped they'd pass me. They didn't. So I drove along about five or ten miles per hour less than the speed limit. I had my head leaning very far to the left so the reflected high-beams weren't blasting me in the eyes. Then, oddly, I saw blue lights flashing behind me. Cops.

I've never been pulled over for anything, ever. I've never even had a cop give me a parking ticket. I couldn't imagine what I was being pulled over for. So I rolled down my window and got out my license. The state trooper came up and asked for my license, then asked me if I'd been drinking. Apparently I'd drifted left several times, but since I was driving with my head practically on my left shoulder so I could keep from being blinding, this wasn't surprising. I told the guy that I had my head way over to the left because I had two cars behind with their highbeams on and they wouldn't pass me. I was very polite and the cop let me go.

What the hell were they trying to accomplish? I understand they're looking for drunks and speeders, but is tailgating people and half blinding them with their highbeams an effective means of crime prevention?