I have noted a MARKED increase in fruits and fresh veggies increasing the past couple of weeks, and that at WalMart.
Fresh veggies especially took a huge hit recently with the freeze that extended down into Mexico. It will 6-8 weeks before produce can be marketable size after the freeze.
Most of the fruits & veggies around here do not come from Mexico. They come from further into South America. During the winter months that is. In warmer months, it comes from all over.