Maybe I’m missing something but I just don’t see how this can happen, and yet it does!
You must have to make a real effort to come down the wrong slip road. It’s all designed to guide you the right way only. But I suppose if you’ve totally lost it through age or medical condition it can happen and ADAS systems aren’t going to stop you all the time you can overide them. And I think you should be able to overide them!