In fact - hold the whole thing.
I have occasionally patronized Subway when traveling. No more.
If I saw a worker holding their pickle, then I certainly would not go back to the store. However, it's an isolated instance and you can see the workers preparing your sandwich. Odds are low that the ingredients were tampered with. I always try to be nice to food preparers. Many years ago when I was a teen, my friend who worked at an ice cream counter told me when someone was rude to him, he would do a lugie in their ice cream. After hearing that, I never accepted free ice cream when visiting him at the store. By the way, I have heard worse things about food preparation from people I knew. As I said, be nice to them!