布小熊

From you description, they were clear and consistent with their 8:30 policy. So asking the waitress multiple times didn't make it more probably to change the rule.

"佢嗰朋友對住D Sushi咳"... so that 朋友 is a customer? siting at the sushi bar? It's hard to tell customer not to cough. But they should look into adding cover between the sushi bar to the sushi table.