Tip the caterer if picking up?

[Myssicce]

I have to pick up lunch today for about 11 people. I had a small time BBQ restaurant down the street prepare the lunches. I will be picking it up myself to avoid a $25 delivery fee. Should I tip them when I go pick up the food?

[jamesglewisf]

You don't need to tip if you are picking it up. You paid for the food. The tip is for serving it which they are not doing.