I'll put this in a much nicer way.
Even if she called the cops, he should have walked away. Walking away is more than just bailing. He could have simply rolled his windows up. By taking his phone out and recording, he puts himself in the situation, which enhances it, and gives her even more reason to get heated since she now has attention. Contrary to what Positive Touch said, do we have any evidence that playing the society laughing game ever works on people like this? He wanted to record to show the police in case they came? Fine. He didn't have to upload it to Youtube. Now, everyone in America knows who Janelle Ambrosia is and we barely anyone even know the dude's name who recorded it. Since he uploaded the video, yes, people have laughed at her. But it also has given her a position and soap box to stand on. She also has a defense force. Like Toxic Adam said, unlike enforcing social contract we all sign up for, it instead reinforces the prejudices these people already had while giving them the attention they desperately crave. See: George Zimmerman and his family. Ambrosia is no longer a divorced single mother of two who looks like she's 50 at age 29. She's now an internet pariah, which is some claim to fame. This hasn't taught her or her comrades shit, and instead of being the better man, and rolling up his fucking window, we now have another psuedo-celebrity whose status is from being a bitch and a racist.
Bravo.
And that's why he's a bitch ass nicca.