Ok, no fluids or food after 8pm, tested at 10:30am (stinky orangish yellow). The line that is supposed to appear for negative results is very faint, barely visible.

So I'm going to pick up my last paycheck from the old place, and may pick up another test and see if there is any difference later today. If I can't find out the specific cutoff for the real test, I'll be going with plan B.