Did I really do something wrong or was this guy just crazy?

I drive a van for the first part of my shift for an after school program. I had just dropped off kids at the program on the other side of town. RIGHT when I got back in to get going, I heard honking over and over, I looked over and a bus was on the street. I supposed he was honking at me to get out of the way. So I inched up a bit to see if he wanted to pull in, there were kids already getting off the bus though, they were way behind me headed to the building. The driver immediately jumped out the bus and starts yelling and cussing at me really loud. He said "What the fu'k are you doing, what the fu'k is wrong with you!!" I was stunded. Shook me up and my adrenaline was up for quite a while after that. He was acting like this right in front of children. Should I report him?