Interestingly, I've seen KFP and non-KFP Liebers pickles in two different supermarkets right next to each other on Pesach. (Two years ago was the only time KFP Liebers pickles were available. This year the only pickles I can eat are Flaums, of all brands. The other ten years there were no pickles for me.)
Agav, this is one of the "advantages" of living in EY. We would never pick up a product without checking the hashgacha, because there are always different hashgachos in similar containers next to each other on the shelf - all year. Milk products alone will have Badatz, Westheim/Tenuva Mehadrin (depending on company), Rabbanut/Rav Weitzman (ditto) right next to each other.
And some products will have kitniyos - you often have to read the time-stamp just to see which of the hechsherim say it is KFP. (Drinks are a particular problem here, because some flavors are kitniyos and some are certified with a good hashgacha.)
Despite all this, I still slip up sometimes.