GRAND LAKE, Colo. — Mayor Pro Tem Arnston was absent, and the 4:30 p.m. workshop was canceled because the board was taken on a Headwaters Marina boat tour. The regularly scheduled meeting began at 6 p.m. A deputy was also present, which was unusual; neither the GCSO nor the town provided a reason for the request when reached for comment. Mayor Christina Bergquist opened the meeting with strong language, comparing the impact of negative commentar…