More than 100 New Canaan residents gathered at Town Hall Monday night to express their thoughts and ask questions regarding the Utilities Commission’s preliminary proposal to build cell phone towers at Irwin Park and West School in efforts to improve service in the north and west sections of the town. The meeting, which opened the floor to the public and was in session for more than three hours, was at times tense and acrimonious as residents and commission members clashed over how the process has gone thus far and how it could affect the town in both the short- and long-term. Utilities Commission Chairman Tom Tesluk opened with a presentation extensively detailing the plans for the proposed cell towers, but stressed that the purpose of the meeting was to garner feedback from residents and provide an opportunity for the consultants hired by the town for the project the chance to answer questions. He also reiterated that the official decision on the construction of the towers would ultimately be up to the Town Council and not the commission. “There has been a certain sense in this town, at a point, that maybe this is a done deal, maybe there’s been a Pearl Harbor sneak attack of powers, but I promise you there hasn’t,” he told the crowd.