That's a classic Los Angeles move. "You want to change lanes and there's plenty of room ahead of me, the driver in the next lane? Not anymore, lol!"

Changing lanes on the freeway? Blocked.

Need to get into the turn lane? Blocked.

Your lane is ending and the smart thing to do is zipper merge? You bet your sweet ass that's blocked and they'll match your speed until you're in the shoulder. Suck it, other drivers.

I used to think LA drivers were absolutely the worst I'd ever dealt with. Now I see Baltimore is catching up.