I don't understand with what right trader Joe's can prohibit somebody from reselling their products. If he clearly states where he bought them from, and that he is not affiliated, and doesn't misuse their trademarks (impersonate them), it should be absolutely legal. A side remark, people often say how great the US / north America is for entrepreneurs, compared to (continental) Europe where there is a lot of red tape…
trademark. he picked the wrong name for his business.