There's no etiquette or rules to pulling up on someone. It's why you should always watch what you say about someone as everyone's energy is different and you never know when/where they'll respond.I think homie wanted a moment and got it. That;s all he looked like he "checked" Roland who probably got on twitter and roasted him again.
Putting aside the nikka moment that he'd only do to a nikka not a white boy. You could catch Roland slipping almost anywhere there's a fish fry at a auntie fest or souls to the polls campaign you could totally put hands on him there.