There are two obvious possible solutions to this from the city:
(1) tiny print on the parking signs that says you consent to be chalked, creating an explicit contract
(2) sell the rights to manage the city's parking to a private entity using private contractors to chalk with no prescription on methodology, rendering the "search" non-governmental in nature
(1) tiny print on the parking signs that says you consent to be chalked, creating an explicit contract
(2) sell the rights to manage the city's parking to a private entity using private contractors to chalk with no prescription on methodology, rendering the "search" non-governmental in nature