Racist remarks while cycling

I was riding my bicycle and needed to cross over from the bike lane to the left hand turn lane. The stoplight ahead turned red and I let several cars pass me. One car was approaching but since it was slowing down for the light I looked behind me a couple times and then crossed in front of the car. I thought it was a reasonable move without inconveniencing the driver. As I crossed, the driver shouted angrily, "Go! Go! Go fucking chink!" I was so angry I flipped the driver off as I turned left. But I felt some fear for the next few blocks as I worried the driver might come after me. Luckily, he didn't. But I've been shook up ever since.