When I got to the "Parking Pass Desk", they wanted to know my income. I told them it was none of their business. The man at the counter explained to me that they have a "special presentation", but that they only invite people who make more than $35,000/yr. I repeated that it was none of their business and left it at that. They never called me, or approached me during my week there.
I guess if you don't want to be as abrasive as I was, you can just tell them that you make peanuts. Apparently that's a deterrent to them.