Taxpayers got taken for a ride by these LIRR fraudsters. Three dozen Long Island Rail Road workers used a fake ID scheme to ditch work but still get paid  — with one bozo boasting he was drinking margaritas poolside while on the clock, a new report found. The scathing report from the Metropolitan Transportation Authority’s watchdog found “widespread culture of fraud and time abuse” in the car maintenance division at the LIRR’s Ronkonkoma, Richmond Hill and Manhattan West Side facilities. “These