As far as I know he is still in business, I was at his shop beginning of May and he showed no signs of retirement. You might try through calling La Poussiere in Breaux Bridge, where he plays on Saturday nights with Walter Mouton.
Had same thing happen when I wanted to place an order. Thought Jr. had fallen off the edge of the earth. Turned out he was just on a well deserved extended vacation. Don't you worry. He or his wife WILL call you when they get back.