Yes, you are sol. With stumpage at 30+ I am supprised you would make such a deal with people whom you know have a shady at best reputation.

 But now, we have to figure out..............well, YOU have to figure out, what to do to mask this issue or somehow repair it as best as possible. Heavy rain is predicted over the weekend. Perhaps next week you can get a soil probe into the soil? Might taking a top 3" sample in the rows and between and send them in now be of use? While the nutrients are concentrated, I wonder if you can get a better idea of what the differential is so that when the strips do show up, and they will, you can have a plan of attack on the board?

 Pictures from a plane?