No, Ponchatoula strawberries can only be bought in Ponchatoula. Though personally, I would say that the drive and purchase would be worth it for fresh berries.
Other than buying strawberries in Ponchatula, you might check the local supermarket.
You can also get it from a vendor on River Road, he sells only Ponchatoula Strawberries. And only locally grown produce :) I bought a tray from him on Saturday. He's the best!
Thanks! Your answer is awaiting moderation.