The portrait of East Hampton Town painted in a new lawsuit is sharply unflattering — and may ring familiar among those who have been close observers over the last few years. A 2009 decision by the East Hampton Town Board to shut down an auto repair business in a Montauk residential neighborhood is at the center of the case. The suit alleges that the way in which a plan was approved to seize vehicles and tools belonging to the business owner, Tom Ferreira, deprived him of due process in the courts and demonstrated a willful ignorance of state law.