Oncoming.
Hawthorne is a major, major thruway. Where he is driving is an exceptionally nice area with a lot of money in the infrastructure. You do regularly see people hit 50-60 around there, but even then, it's not particularly dangerous is you're attentive. AFAIK, it wasn't foggy today. Also, it's one of the few Trumper-heavy parts of the Los Angeles area. I worked the election in PV and got to experience it first-hand.
Anyway, it sounds like serious reckless driving if reports are to be believed.