From http://www.dwaynesphoto.com/

On December 30th, 2010 we will process the last roll of Kodachrome slide film.

To commemorate the best slide and movie film ever made, show off the Kodachrome colors with this 100% cotton T-shirt. (available on site)

AFAIK Dwayne's was the last place process K-14 commercially, others may have been accepting film but were in fact sending it to Dwaynes.