Has an NFL team ever appeared in the Super Bowl on their home field and if not what would the NFL do?

There has never been a team to play a Super Bowl on their home field. The closest was Super Bowl XIV when the Pittsburgh Steelers beat the Los Angeles Rams at the Rose Bowl in Pasadena, CA. and Super Bowl XIX when the San Francisco 49ers beat the Miami Dolphins at Stanford Stadium. The NFL awards the Super Bowl to a city four years in advance. If a team won their conference championship and the Super Bowl was scheduled on their home field, the game would go on as planned.