Faced with charges that his flock’s Sunday parking privileges have ruined the Garrison Elementary School field, Metropolitan Baptist Church’s the Rev. H. Beecher Hicks has played up the church’s altruism. In case community ankle-biters missed the point, Hicks last week produced a packet documenting $216,400 in in-kind services and other church gifts to Garrison over the past five years. Among the line items: an estimated $9,402 expenditure to give Garrison students Christmas baskets and the annual $2,210 “contribution” of hosting the school’s graduation ceremony in the church. Metropolitan also claims to have spent $13,000 on “field upkeep and lighting,” a category that includes “resodding” and “mowing the grass,” according to church Director of Operations Cliff Cooper. “What grass?” asks Glenn Melcher, an advisory neighborhood commissioner who has been one of Metropolitan’s fiercest critics on the issue. “They must be mowing the rocks.”