“Mad Men” went out with a bang last night. The show scored its highest season finale rating ever with 2.7 million viewers. That’s more than all the other seasons so far including last year’s brilliant closer with Don getting hit on at the bar. And last night was action packed for “Mad Men,” with a few cliffhangers designed to keep us chomping at the bit for more in March 2014. It’s hard to believe that “Mad Men” will end, but Matt Weiner is determined to wrap it up in 14 hour long episodes.