My wife's car has a thing where it helps to keep you in the lane, but I usually turn it off. We had a case once where we were in construction and the lines were all over the place. The car started pulling us in a very wrong direction and I had to fight it to get back in the lane. Ever since then I haven't cared too much for it. Also, to be fair, I have pulled into the wrong entrance to places myself quite a few times, so I don't think you can really fault the self driving for that. It's probably still accurate more times than me!