Was exsposed to 1/2 a joint pot smoke in an apt for about 5 min. Will that show up in a folicle test?

I was visiting a friend when her roommate busted out a large half joint and began to smoke with her. I sat under a fan as they smoked. Enough for me to smell it and I think I began to see a bit of haze. After about 5 min or so... I got nervous and left. I'm about 145 lbs. and work out. I need to take a DOT urine and follicle test in about 2 weeks. What are my odds of being dirty?