She's holding up traffic next to the carpool lane (I can see 5 or 6 cars stacked behind me), she's going 5 or more under in the fastest non-carpool lane with 100s of feet of road open in front of her, room to move over, so I flash my lights at her when it's dusk. She flips the bird, so I try to pass her on the right but she speeds up to block me in exchanging birds all the whole, she is clearly me animated and thinking she's won. Form a V sign, and stick my tongue out once I'm able to get around her. The look of shock on her face was priceless.