By David Shortell, CNN Santiago, Chile (CNN) — Bundled-up mannequins stand in the storefronts on the main shopping avenues off Santiago’s central Plaza de Armas. Straphangers at bus stops clutch steaming coffees and huddle for warmth. On the horizon, views of the Andes are as spectacular as ever, their snow-capped peaks gleaming extra bright after an early-season storm. Santiago is under a record freeze. After an eight-day “cold wave” pushed thr…