C.R.S. § 42-4-1212

(1) A person who owns, operates, or manages a parking space that requires remuneration shall not tow, boot, or otherwise take adverse action against an individual or motor vehicle parking in the space for failure to pay the remuneration if the motor vehicle bears a remuneration-exempt identifying placard issued pursuant to section 42-3-204 . (2) Notwithstanding any statute, resolution, or ordinance of the state of Colorado, a political subdivision of Colorado, or a governing board of a state institution of higher education, parking in a space without paying the required remuneration is not a violation of the statute, resolution, or ordinance if the conditions specified in subsection (1) of this section are met. (3) A law or parking enforcement agency shall withdraw any penalty assessment notice or summons and complaint that is deemed not to be a violation under subsection (2) of this section within five business days after being shown proof that the individual cited has a valid remuneration-exempt identifying placard. (4)(Deleted by amendment, L. 2018.)