I think there may be a mistake here. After conducting research, I could not find any information about a restaurant called "Courtesy Buick GMC". It appears to be an automotive dealership rather than a restaurant.
However, based on the name, it's possible that they have a cafe or dining area within their premises for customers. If so, here is a brief introduction:
"Not much information is available about Courtesy Buick GMC's dining area."
