Since I brought my bottle of NyQuil to show them.... and I also showed a doctor's note saying I've been very sick and need to take cough syrup (actually they gave me codeine cough syrup but I opted to take the NyQuil instead).... Do you think the "positive" will be ruled out?

(I'm very scared.... this is not what I need.... I've been wrongfully accused by my employer based on a bad interaction I have with a co-worker .... she just doesn't like me and makes up lies about me). I drink socially. that's it. I had a glass of wine tuesday night at dinner (I also told the counselor this).... DO you think this will be held against me... or is a positive.... an absolute positive.... ? (i have no expectation of abstinence). But the guy told me that he'd put me in this program if I was positive....(so maybe that's a relative term).?