The call came in April but the impact, like a thunder clap from miles over the horizon, didn’t hit Chauncey Billups until much, much later. Like July later. Like July in Cleveland later. Like July in Cleveland while signing autographs later. “I had to do this sports memorabilia show,” Billups, the Denver native and Mile High City basketball icon told The Denver Post recently when asked about his scheduled induction into the Naismith Basketball Hall of Fame next weekend.