So I ordered some food over the weekend at a local pizzeria, I c

Woodbine - So I ordered some food over the weekend at a local pizzeria, I called then picked up my order. I was asked over the phone if I was going to pay by cash or card. I thought that was very odd. So I pick up my food and then on the door I saw a sign and it states that they will charge you a 3% fee if you use a card. Why? this has never happened before and I have been going to this pizzeria for years. Then they have the audacity to have a tip jar on their counter. Get real. I know when I order again I will pay in cash with no tip.