SubUrbana is a world that is entirely suburban. There is no densely packed downtown. There are no high rises. There are nested streets, and fences. There are shopping malls and fast food drive-thrus. There are some highways. All the trappings of American Suburban Life.
The details about how this works aren’t important, mostly because you don’t know the details.
What you do know is that the authorities that rule over SubUrbana claim to do so with the authority of Urbana. But no one goes to Urbana. No one you’ve heard of anyway.
You are a kid who runs through the streets of SubUrbana fucking up The Authorities.
Tell them who the fuck you are.