Car tried to cut in front of me approaching Tchoup ramp to cross CCC bridge, but I didn't let her ahead of me. She cut behind me and rode my tail up the ramp honking her horn and flipping middle finger at me the whole way until she went around me in a non-lane and braked right in front of me, causing me to slam on my brakes to avoid hitting her. She then watched behind her, taunting me and sticking her finger to motion me to get on the side of her, only to swerve into my lane and force me to swerve into another lane, nearly causing an accident. I stayed behind her the entire time crossing the river going 30 mph. She then thought I was getting off at the Terry Parkway exit because I had my blinker on, so she got in front of me to exit also, but I returned to the lanes to go straight. When she realized I wasn't exiting, she threw a bottle out of her window at my car. The state police were notified. Mercedes Benz SUV, white, plate # 694FCC. Endangerment on the road. She could have hurt me or others. I'm glad a gun wasn't pointed at me. All because she was in the wrong lane to enter a ramp.