I would be curious to know what the car thought the situation was, something must have gone really wrong here. It ignored the double lines and crossed them to overtake and then stayed in the wrong lane for a really long time.
If the car understood the state of the world around this, this is kind of a huge mistake in behaviour. And if it didn't it is concerning as well as it would mean it can end up in the opposite lane without knowing it. I would suspect maybe a bit of both, that it misunderstood the world when it started to overtake, and then was unable to abort the process safely. In that case I probably would have expected it to stop driving forwards and put on hazard warning lights as long as it is in the wrong lane.
If the car understood the state of the world around this, this is kind of a huge mistake in behaviour. And if it didn't it is concerning as well as it would mean it can end up in the opposite lane without knowing it. I would suspect maybe a bit of both, that it misunderstood the world when it started to overtake, and then was unable to abort the process safely. In that case I probably would have expected it to stop driving forwards and put on hazard warning lights as long as it is in the wrong lane.