trying to change lanes (with turn signal on) and decides to cut me off, thus almost getting me into an accident with the car trying to make a left in front of me. Proceeded along and noticed this young man was looking a little bit dizzy so i expect he was not only drinking and driving but also underage drinking (which makes sense as there are 2 college campuss within 15 miles of the interaction). A few stop lights later i pull next to him at a red light and see that his window is down. i ask him if everything is alright and he responds by giving me the finger. Actually both of them