After years of legal skirmishing, the Los Angeles City Council on Friday took action to start off the new year with a toughened enforcement policy against mobile billboards. 'This is a huge win against a major source of blight and traffic safety hazards in our communities,' Councilman Dennis Zine said. 'These mobile billboard advertising displays take up parking spaces, impede visibility and attract vandalism and graffiti.' For years, Zine has been waging a war against the mobile billboards and one company in particular, Reseda-based Lone Star Security and Video, fighting unsuccessfully to get them off the streets. Lone Star president Bruce Boyer has insisted he has a First Amendment right to have the trailers on the streets and he has gone so far as to park trailers in front of Zine's offices and local police stations. Zine's efforts were bolstered this past year with legislation by Assemblyman Bob Blumenfield, D-Van Nuys, which makes it possible for the city to cite and impound the vehicles. With the state law taking effect on Jan. 1, Zine won approval of a change to city regulations to allow for immediate enforcement. Zine said he will ask local volunteers to form a task force to find the vehicles and report them to traffic enforcement officers to be cited and, eventually impounded. Boyer has said he has been meeting with his attorneys on the best strategy to try to contest the law. 