Wow, living in Gretna you're pretty far off the beaten trail. Parcels going to rural areas like yours add an easy 2-3 days to any transit time.
However, that does not excuse the fact that he is ignoring you.
I suggest checking his feedback for any transaction where he was the buyer. Ask the seller if he/she could provide the shipping address used, then do a reverse phone # lookup and call it.
Worked for me last time I had an issue like yours, boy was the fellow surprised to hear me calling him out of the blue, and my item was shipped post-haste.