It would be fair to consider it. The interior decor does match with how they decorate the interiors of Five Guys. The wooden booth tables with wooden seats featuring red cushions. The white tiled lower portion of the wall, which features one two-tile high red checkered strip that is somewhere around 1 white tile above table height. Not visible, for obvious reasons, would be the lower three-tile high red checked strip that is below table height.
Her drink is also similar to the Five Guys' drinks, though an accurate depiction would be like post #4785576.
