It's worth noting that SF Parking Control Officers aren't "police" by most any definition. They're not sworn, and they don't qualify as peace officers under California law. They can't execute warrants, make arrests, or carry firearms, etc. They work under the San Francisco Municipal Transportation Agency (SFMTA), not the SFPD.

Their enforcement powers are limited to issuing parking citations, ordering tows, and directing traffic. About the only thing they share with actual police is the word "Officer" in the job title. Tracking these folks is about equivalent to tracking individual USPS employees.