Passing a urine test, will I?

[Furball]

So not sure if subbing is gonna be possible so here's the deal.
5'8" and 200lbs. Moderate smoker for quite some time but had stopped for a month. Took a trip back home and ended up smoking Friday eve and Saturday eve but not nearly like I used to. Got a call out of the blue Monday and had an interview Tuesday. Have to take a test today, Thursday, and have been flushing with water since Monday. Basically I have 4 hours to do what I can. Gonna slam a coke and some gatorade before I go in since my urine is pretty clear to hopefully offset it. Think that will be enough? Was gonna sub but that is not panning out (go figure). I feel confident that I've done all i can in the time frame and limited cash. Any thoughts?