Protests are clear signal that regulations designed to create a legal framework for app-based ride services have not put an end to city’s simmering disputeA raucous crowd attacked Uber drivers and their vehicles with clubs and stones outside the Mexico City airport, according to the company, as licensed taxi drivers demonstrated to demand a “total halt” to app-based rideshare services in the capital.Video of the demonstration showed people throwing eggs and flour inside the windows of vehicles, kicking doors and trying to rip off side mirrors.