My revisit to San Diego was pleasant except for my...

My revisit to San Diego was pleasant except for my visit here. Food was so-so, service by waiter/waitress was good (the reason that I gave one star instead of zero or negative), but the counter lady was very rude when I wanted to pay before the rest of the group of 11 people due to my flight schedule. All they need to do was a simple execution of mathematics by subtracting my portion from the rest and re-calculate the bill. Although my simple request was made courteously, the reaction was a swift annoyance and anger.