Several San Antonio businesses, including Whataburger, HEB, and Taco Cabana, are asking customers not to pay cash. One unexpected effect of the pandemic is a widespread shortage of coins, so it's tough for businesses to make change. The head of the Federal Reserve spoke to the House Financial Services Committee about the problem last month. Businesses are asking customers either to pay with exact change, or else use a debit or credit card, or the Whataburger app.