Section 19-167.1. Parking at broken or missing meters or muni-meters

a. A
  person shall be allowed to park at a missing or broken meter up  to  the
  maximum amount of time otherwise lawfully permitted at such meter.
    b.  If all muni-meters in a parking field or on a block are missing or
  broken, a person shall be allowed to park in such parking  field  or  on
  such block up to the maximum amount of time otherwise lawfully permitted
  by  such  muni-meters in such controlled parking field or block. For the
  purposes of this subdivision,  "muni-meter"  shall  mean  an  electronic
  parking  meter that dispenses timed receipts that must be displayed in a
  conspicuous place on a vehicle's dashboard.