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He suspected this absurd-seeming pattern was due to limitations baked into the software used by parking control officers. Whatever its reason was for existing, the pattern of sequential ticket IDs, paired with parking officers likely claiming batches of ticket numbers, meant Walz was able to track their routes by plotting each parking ticket on a map as soon as it was entered into the system. A car owner could look at the activity of the officers currently out on patrol and see if any of them were…
