Red Light in Washington State

This incident occurred September, 2016. 

While I was in my car waiting at a red light, 3 men in a car pulled up next to me and with windows rolled down, arms hanging out, and spoke loudly to each other, "Aren't you tired of all these gooks" and "I'm so sick of these chinks" etc. My window was rolled up the entire time but this continued until the light turned green. I am an Asian woman and was alone in my car.