DANVERS — Patrolmen have cost the town $173,000 by refusing to write traffic tickets in a ploy to influence contract negotiations, top police brass and town management officials allege in a complaint filed with the state last week. Town officials claim police union members are handing out warnings rather than tickets in an effort to cost the town money and gain leverage at the bargaining table, according to their complaint to the state Labor Relations Commission. The 44-strong police union has gone nearly a year-and-a-half without a new contract in a dispute over raises. But at least on police union...