Dungy expected frosty Belichick exchange

^ Sure, the postgame exchange between the Patriots’ Bill Belichick and the Colts’ Tony Dungy was quite chilly after their teams met last month. But Dungy doubted it was because his coaching counterpart was angry over his earlier comments about New England’s spying scandal. During an interview on HBO’s “Costas Now” that will air Tuesday night, Dungy was asked whether “frosty” was the proper…