Panera Bread review: short in change operating without pennies.

I went to the Panera Bread in Chelmsford, MA to have a breakfast with my wife. it's was Monday November 19, 2019. The time was approx 9:10 am. I purchased an orange scone, handed her my cash for the transaction. when she gave me my change back she short me 2 cents telling me that she doesn't have pennies in her cash register. I told her ok no problem. she didn't apologize or ask me if I was ok not getting the exact change.
after having my coffee and my scone, my wife wanted to have a soup. I went to the same lady at the cash register. I purchased a soup and I got shorted 2 cents again. same reaction and same excuses like the first transaction. At this point I was furious and couldn't understand how a business like Panera Bread don't have pennies in their cash register assuming that is customer will be ok with not getting the exact change. how can you operate a business and not having change also not even trying to run to the bank and get change.
I asked to speak to the Manager regarding the change issue. The Manager in the name of luis told me that he can give me % cents to make me happy. He didn't get the point, it's not about the pennies it's about shorting all the customers in their change in a disrespectful way assuming that everyone will be ok. the reaction of the manager was very disappointing no sorry no acknowledge that he needed to correct the change situation. I am very disappointed with the way Panera Bread treat their customers shorting the customer on their hard earning with no justification. what happen if every customer is short 2 cents coming to Panera? camelo
[protected].