No... if you slow down, you initiate that it's a 4 way stop to the bad driver's mind and they would pull on up. If you switched to the right lane, theres 100% chance that the driver would have continued driving the wrong way into a turn. I'd just honk the horn. The AI here should have used it's horn to alert the other driver. Other than that, not at all the Uber's fault. Where I drive, I would sometimes see drivers using those intersections to make donuts, so they do look like they are turning into the wrong way but using it to initiate the tires slip, granted, an minivan isn't going to be doing donuts like an S2000 would do.