I went for a spin today since I haven't been out on the highways in a while. While coming off the feeder road, I opened her up(and she loved every moment, as did I). I had to do some hard breaking, but brief braking due to a semi trying to get in the correct lane to exit. Then the ABS light came on. I still had brakes. I made it home and turned the car off. Checked under the hood. Everything looked fine. Started the car again and no ABS light. Should I be worried? I think I will take it to get checked out. Any suggestions on what caused the light to come on.