San Antonio-based Whataburger giving out free iced coffee this Thursday

San Antonio-based Whataburger is hoping a free iced coffee giveaway can help folks stay awake during the longest day of the year. The complimentary 16-ounce iced coffees are available from 6 a.m. to 6 p.m. this Thursday at all Whataburger locations, including those in San Antonio, officials with the burger chain said. Customers can even customize their free brews with flavors including vanilla, caramel and mocha.