read the original post again...
I don't see anything about a loud, yelling man angrily approaching the OP and causing a scene.
The guy said one line. besides that, an african american male stepped out of his vehicle and walked up to the OP to inform him he just cut several people. the OP had a problem with the way this man handled it. falls into the category of get over it. The OP assumed this person was very angry...really neither here nor there.
The little old lady, the middle aged mom, the 18yr old, choose another example here probably were happy that this man took it upon himself to notify the OP of what everyone else was thinking.
"Damn the torpedoes, full speed ahead!" -Admiral Farragut @ Battle of Mobile Bay 05AUG1864