I had an interview and took a xanax before going in, I was super anxious, anyways they did a oral drug test during my interview, and I didnt' even think to "mention" that I took a xanax, should I call them and let them know, or should I just save myself the embarrassment and just see if they say you failed. I do have a valid prescription and am not trying to hide anything, but they also won't know for another 3-5 business days?? please help me on what to do??