CNN  —  Sometimes even superheroes need rescuing. A Colorado deputy came to the aid of “Captain America” after the crusader’s motorcycle broke down en route to a local children’s hospital event last Wednesday. Matt Gnojek, dressed as the Avenger and known locally as Colorado Captain , had planned to make an appearance at the hospital’s holiday parade when an engine failure left him stranded on the highway shoulder just south of Denver. Enter Douglas County Sheriff’s Deputy Zach Zepeski who came