Yesterday, I almost got in an accident. I was driving home from work on CA-76. Basically, it's an expressway with a bunch of signals and freeway posted speed limits. Anyway, some idiot pulled out in front of me and then stalled his car. I had to slam on the brakes hard enough where the ABS kicked in and either the brakes and/or tires were smoking. Anyway, since then my brakes haven't felt the same. Almost like there is a very slight vibration I can feel in the steering wheel when I'm on the brake. When I looked at my rotors, they were a darker gray and no longer shiny. I also noticed a few small black specks that weren't there before. Regardless, they don't come off. Are my rotors screwed?