Discription of Events: She pulled out in front of me in a 55mph zone, so I had to get in the left lane to avoid hitting her. She then tried to pass a semi in front of her by getting in the left lane (my lane) while I was right next to her, so she swerved back into her lane once she realized I was in the left lane. Then once I passed her, she got behind me and then cut off the semi that had been in front of her. She continued weaving through traffic, continuing to cut people off.