Just yesterday I ran into some confusing cones and signage where I made the right merge onto the exit, but the car behind me made the wrong call and drove a kil

Just yesterday I ran into some confusing cones and signage where I made the right merge onto the exit, but the car behind me made the wrong call and drove a kilometre or so down a newly built, unopened highway in parallel to me on my left until they got to some concrete barriers and realized their error.