Big -
Seems like you waited a little too long before laying down your bowl.
You are right about the sophistication of the labs, incidentally.
There are some reliable ways to get around your test and some to so.
Forum rules prevent me from discussing more about it.
Of course, abstinence is...
Sam -
If I'm correct, the blood test won't show any pot (THC) metabolites. They are stored in the fat cells and linger for longer than two weeks in most cases. You'd be dancing a little close to the edge if you only have a two week window.
Unfortunately, you might have to seek some legal form...