Kim Kardashian & Miles Austin -- Chaotic Date Night
's road to the Super Bowl
began in New York last night ... where the Dallas Cowboys
star celebrated his birthday by going out with Kim Kardashian
... and it was pure mayhem in the streets.
About 5 gazillion people followed the couple -- and their respective posses -- as they walked a few chaotic blocks from dinner at STK to the after-party at SL Lounge.
No word on what Kim got Miles for his birthday ... besides a guaranteed championship.