Taco Bell review: racist employee

My boyfriend and I went through the drive thru at taco bell to order me something. He is chinese and has an accent. After he ordered, the lady taking our order said, "ha ha ha why are you talking like that?" she just thought it was the funniest thing... Then we pulled up, and she said, "oh, I guess you do talk like that.. I thought you were changing your voice!" I also saw a guy from the back peak around and look through the window to see who was out there because I guess she told him about my bf. You don't know how incredibly mad I was, and how bad I felt! Ugh >_