Yep, the Prius is on the wrong side of the road. And, looking at all the pics in the article, it was travelling at some speed to push the GMC back and over two vehicles behind. No way the Prius was attempting a controlled U-Turn, but maybe travelling straight on.
Explains why the cops on the scene are in no hurry to ticket Arnold.
I’m recall one of the Williams sisters got caught in similar situation. I’m sure the investigators will work it out.
Also note that it doesn’t look like either vehicle is ON Sunset Blvd.