He coughed on me on purpose

I was shopping at Kroger. I was masked, and another customer coughed on me on purpose. It seemed really close to my face, so I turned around to see what was going on. He and another woman were walking away, laughing at the incident. I stayed in the produce area because I was sort of scared. And then when they left, I spoke to the store manager about the incident and asked him to check the security footage. The manager said he would check the security footage but would not do anything else. I just felt sort of humiliated and scared by the whole thing. I don’t know why someone would do that. It just seemed mean-spirited. I was clearly targeted because I was wearing a mask, and I sense that I was targeted due to being Asian.