Discription of Events: There was an accidental, which caused traffic to get backed up for miles. By the time I reached the accident scene and all lanes were merging into one, 4 lane highway. The person threw a water bottle at my brand new car, because I wouldn't let him merge, after he drove in front of a bunch of people trying to merge. Basically he drove on the far left lane when everyone was merging into the far right lane until police were in sight and then tried to cut me off. Gradually easing into my lane, then quickly, didn't let him, so he threw the bottle. No damage to my car, but it was a stressful situation.