oh___crap

i am on probation. i haven't smoked marijuana in about a year. at all, whatsoever. i've passed all my drug tests. but last night i was in a car with my friends who were smoking marijuana, and i KNOOW, okay i know you can't test positive by simply being around smoke. but i know i inhaled some of it, as it was right in my face. i don't think it was all exhaled-smoke, as some of what i inhaled (i think) was rising off the end of the joint. anyway i had a drug test TODAY and i couldn't see my results. the lady that tested me is usually super nice (she's probably tested me like 5 times) and is always friendly and talkative. she was at first today, but after she wrote down my results, she seemed displeased and short with me. so i went to walgreens and bought at at-home test, which i passed. so i know how stupid i look asking this right now, but could my probation test have been more sensitive than the at-home test? don't hurt me, i'm just worried.