My wife's car has ACC. I typically set it for about 6-7 over the limit on the freeway (about 85% speed here). Every now and then I will suddenly realize that I'

My wife's car has ACC. I typically set it for about 6-7 over the limit on the freeway (about 85% speed here). Every now and then I will suddenly realize that I'm now going 50. Usually about the time some car flies past my in the left lane and I'm wishing for some traffic enforcement. Then I see that he was really only going the speed I planned to go and I've settled in behind a slow poke.