First time here, will be my last time! Stopped in ...

First time here, will be my last time! Stopped in Saturday night with my co-worker. We sat at the bar and the bartender asked her if we were having food. She relied " no just drinks" he said " I can't sever your friend ,she's had enough tonight" WHAT! I don't drink and was completely sober! She tried to explain I was the designated driver, but he walked away! Ironically, my friend was completely trashed and he served her!
Of course the whole bar heard the interaction and had to comment. It was completely humiliating, uncalled for and insulting! As a former cocktail waitress myself, this bartender needs to be retrained in spotting intoxicated customers. I will never return!