When I was a lowly gift shop employee back in the late 90s, we were allowed to park in Lot G for a reduced rate (I believe it was like $7 when regular parking was maybe $12?). I'd be surprised to hear that's not still the case. Although making your employees pay to park at all is pretty ridiculous, especially when you consider that I was only making $7.50/hr.
Oh, White Sox. How I loathe to love you.