Shoppers at the Columbia Heights Giant were greeted this evening with fantastic news: A flyer promising that all 19 cash registers will be open from 4:00 to 8:00 p.m., and a rotisserie chicken to anyone who finds one closed (unless it’s “broken or offline”). Looks like all the whining about epic lines stretching back into the food aisles, plus increased traffic from people busing up from the now-closed Shaw Giant, might have finally forced a change.