I think you are correct. They want to completely do away with cash exchanges. Because at the rate they are spending, cash will soon be worthless. We are on our way to becoming Venezuela
Several places around town here have signs at the cash registers:
Due to the NATIONAL COINAGE SHORTAGE we ask that you have EXACT CHANGE or we will round UP to the nearest DOLLAR OR YOU CAN PAY WIT CREDIT OR DEBIT CARD................