You were following way to close to the cyclist. That just isn’t safe. I know she was riding slow, and I know she was hugging the right hand side of the lane instead of riding in the center, but that doesn’t mean you have to badger her. Chill out.
To the lady in the Pathfinder-esque vehicle:
Not only were you too close to the cyclist on the bridge, but you looked like you were trying to pass. You were encroaching on my lane! I honked at you, and yet you didn’t slow down and move over. What is wrong with you? Besides, what were you going to do if you had passed them? There was a long line of cars in front of you. See moron #1 above.