his urine will be too dilute, and that is an assumed pos/re-test. urinate a couple of times when you get up, take the test. that reading on that test is a neg......period. if you are going for a CIA job, you're fucked. if your testing for a regular gig, i think you'll be fine. personally.....i refuse to work for an employer that is concerned about my cannabis use.
and a lot of places aren't looking at pos/neg; they're looking at levels, and many ignore low levels of THC. and.......why the rock test???? stay away from that shit......what the fuck. tweeking is nowhere, man. lose it.