Berkeley may be the home of the Free Speech Movement, but expressing emotion with a car horn is apparently not a protected form of communication there. An Oakland woman alleges that Berkeley police violated her First Amendment rights when an officer ticketed her last year for honking in support of a labor union's picketing outside the Claremont Resort and Spa to protest rising health care costs and other issues. Carol Harris, 51, is appealing her $143 "unreasonable use of horn'' citation to Berkeley's Police Review Commission, which will consider the case on Thursday. Harris was among nearly 40 motorists who...