Attention guy stopped at the red light.
See how there is still 10 feet between you and the car stopped ahead of you?
See the parking lot entrance on your right?
The one you're blocking?
See the driver on your left trying to turn into that parking lot?
See how you're blocking him?
See the line of cars behind him that are stuck until he is able to pull out of his lane?
Hear his polite taps on the horn meant to bring the whole unfolding scenario into the forefront of your cerebrum?
See his waves indicating that your moving up would be helpful?
Yeah, getting pissed off and waiving the bird... really not necessary genius!
Let's all work together shall we?