ABS brakes and whining

Recently I had a pretty bad power steering leak that may have shorted out the ABS sensor. I noticed that it was wet and had planned to replace it on the weekend. When I got in it to go to work on Wednesday I noticed that the ABS light had went off on its own. My initial thought was that it had dried from the fluid. As I was pulling away from my home, the left front wheel/brake seemed like it applied on its own. There was also a light Whining sound. It would only stay for one or two seconds, but it was enough to bring the truck to a stop. I wanted to drive it down to the shop but I really do not want to risk damaging anything else. Am I correct in thinking that it is the sensor?