In keeping with tradition, Tomales High School seniors stayed late after school Thursday to make their annual case for off-campus lunch privileges to Shoreline’s school board. “I’d like to hear from the seniors,” trustee Monique Moretti said when the topic arose, and 15 of the upperclassmen jumped from their seats. “Why should we grant you this privilege?” she asked. “As you can see,” Adrian Vega, the school president and a new student representative to the…