I try to avoid spending time in and around mall parking lots, or any parking lots for that matter, cycling or otherwise. I find when there's only a painted line, and not a physical barrier, separating folks on a largely square area that people take "shortcuts" diagonally accross rows of parking spaces towards perceived openings without so much as glancing down the spaces between parking rows for the vehicles that should be driving there. The more I think about it, the more I really hate parking lots.