Well I have an opinion. I used Komodo's logic and choose the 3rd Slot; I got the Pink Slip. But then, I faced Wolf and picked the 2nd. Proven wrong.
However i did notice something interesting. In both pick up slots. I got the Pink Slip and the Cash, and, In both, the Cash was to the right of The Pink slip. So, I'm guessing, "GUESSING", that if you choose a slot and get the Cash, the one to the left might be Pink Slip.
I'm not telling this is a fact, just my opinion of my guesses, perhaps, I'll try it with Kenji. Cheers