Place prepared strawberries in bowl, reserving about 1/2 cup for garnish. Sprinkle with sugar, and set aside to macerate. Stir occasionally.
In a large bowl, mix together the softened ice cream, the citrus zest and strawberries (along with their juice). Stir until berries are evenly distributed. Pour into pie crust. Freeze about 3 hours until firm. Serve each slice of pie with some of the reserved berries for garnish.