More likely the city is trying to save money so lowered the bounty on parked cars, or the cops aren't getting around to inspecting/tagging them for towing.
Typically towing companies jump all over abandoned cars as long as they're tagged as inspected by an officer. (at least in MN)
Google is your frenemy.
Caveat Emptor - Latin for tough titty
I tend to interpret things in the way that's most hilarious to me