Ticketing people is only PPA’s job on streets with parking meters, time limits, or ones that require a residential permit. They enforce their parking rules, not the city’s.

Anywhere else, it’s PPD.

That’s why you can get a PPA ticket for being 5 minutes past the meter, but if you’re in on a non-permit street, you can park on the sidewalk or in the middle of the road, and violate every parking rule and nothing will happen.