"I felt like I was in 'The Twilight Zone,' because people were just going about their business," she said.
Bennett says she felt she was looking out for the company's reputation when she reached out to Starbucks again, urging them to remove or cover up the sign, which she said by late morning was upsetting customers and passersby.
"Stop with the coffee orders, stop what you're doing, there's nothing more important than getting that off of your sign," Bennett said.
Eventually, Federal Way police took a report, and the Starbucks staff cleaned the statement off the sign.
"I did get a message from Starbucks," Bennett said. "They dealt with it."
Bennett says she's a huge Starbucks fan, and her anger is directed at the vandal and not the company.
But she said there should be a company protocol when hate speech appears on their property. A KIRO-7 News request for information made to Starbucks media relations was not returned Friday evening.
"Afterwards I wasn't sure if it was the right thing to do, but I'm glad I did it," she said.
Federal Way police are looking for the vandal who painted the sign. Neighboring cities have recently investigated some racist graffiti incidents as hate crimes.