Residents from the Anzures neighborhood hold signs that read "No to parking meters, yes to a referendum," regarding an upcoming referendum about the installation of parking meters in the nearby Condesa and Roma neighborhoods in Mexico City, Saturday, Jan. 19, 2013. Here and in other well-to-do areas of traffic-choked Mexico City, authorities are trying to take back the streets by installing parking meters. Many are vehemently opposed, saying the streets are public and no one should profit from them. Parking meters were installed in Anzures this month. (AP Photo/Marco Ugarte)

Associated Press
Residents from the Anzures neighborhood hold signs that read "No to parking meters, yes to a referendum," regarding an upcoming referendum about the installation of parking meters in the nearby Condesa and Roma neighborhoods in Mexico City, Saturday, Jan. 19, 2013.  Here and in other well-to-do areas of traffic-choked Mexico City, authorities are trying to take back the streets by installing parking meters. Many are vehemently opposed, saying the streets are public and no one should profit from them. Parking meters were installed in Anzures this month. (AP Photo/Marco Ugarte)
Residents from the Anzures neighborhood hold signs that read "No to parking meters, yes to a referendum," regarding an upcoming referendum about the installation of parking meters in the nearby Condesa and Roma neighborhoods in Mexico City, Saturday, Jan. 19, 2013. Here and in other well-to-do areas of traffic-choked Mexico City, authorities are trying to take back the streets by installing parking meters. Many are vehemently opposed, saying the streets are public and no one should profit from them. Parking meters were installed in Anzures this month. (AP Photo/Marco Ugarte)