Well, when the villains were divvying up the city, The Zodiac took the section with the East bridge thinking that it would be easier for them to commute on out-of-town trips... forgetting that they were international fugitives and surrounded by an enemy nation so they could never leave. And unfortunately, they didn't get a single dog park or puppy mill in their territory. Also, this was all mostly industrial zoning, so hardly any residents to help them with their TikToking.