This happens quite often when I buy produce from my local farmers markets. Granted, not all of it is actually grown locally but a majority of it doesn't have wax coatings, pesticides and other crap on it, so you need to use it right away. I'm fine with that. However when it happens from food from a major grocery store such as Walmart or even Trader Joes, I'm assuming that it's not only been waxed/radiated/and covered with pesticides, but that it's also much older as well.
Interestingly, some of the major grocery stores near me have also started to carry some produce from local farmers.