Burley, a worker at the store, said she peered out of the window Monday to find a smiling Phil Mickelson and his daughter.
"When I opened the window I see the green jacket," Burley said. "I said: 'You won yesterday,' and he started smiling and said, 'Yeah.' "
Burley said she recognized him because her boyfriend made her watch the tournament Sunday.
Mickelson ordered a dozen each of glazed, chocolate and mixed donuts, she said. Burley said she and her co-workers snapped photos of the Masters Tournament champion before handing over his order.
Greg Carswell, the manager of the store, took a photo and gave the champ the doughnuts for free.
"He was humble," Carswell said. "You would think it was just a regular day for him."
Burley said it was no surprise to see golfers at the store. All week, they had been stopping by.
When she first saw the Mercedes on Monday, Burley thought it was another green jacket wearer.
"I thought it was Fuzzy (Zoeller) coming back through," she said.