Yesterday's unusual double-header subway series, with the first afternoon game at Yankee Stadium and the evening game at Shea Stadium, might have been a commuting nightmare for devoted fans trying to catch both games. But the teams got full police escorts to the stadiums--it only took 17 minutes for the team and media buses to head from Queens to the Bronx and 20 minutes for the Bronx-to-Queens travels! But one Daily News reporter who decided to drive made it to Queens in just over an hour. Did any readers take the subway from Yankee Stadium to Shea? And the Mets are hosting the Yankees right now, Johan Santana vs. Andy Petitte