Does the Roswell incident prove there are other forms of intelligent life elsewhere in the universe?

Roswell was, supposedly, a situation in which an alien craft came who-knows-how-many light-years to visit Earth before the pilot punched the wrong on and caused a fatal explosion above the New Mexico desert (this is akin to making a cross-country road trip, and totaling your car on the garage door as you pull into the driveway). Debris was recovered, as were alien bodies. And yet, strangely, even after 60 years, the consequences of this short-circuited social call by a culture able to bridge interstellar distances are zilch.