Discription of Events: Driver of red camry merged into left lane from right lane on Barbur BLVD with no signal with a car directly next to them while speeding. Pushed the car next to them into the suicide lane, causing them to have to dodge an incoming car turning left. Almost was a head on collision. Then they brake check the car behind them and proceed to zoom off into a drive through to avoid confrontation. Had any collisions occurred, it would have been a minimum of a 5 car accident and easily could have killed multiple people.