Ben Affleck stopped by for some burrito lunch at a Swarthmore restaurant

Two-time Oscar winner Ben Affleck was seen at Luna’s Mexican Grill in downtown Swarthmore, on Friday.

In an Instagram post, the restaurant’s owner Cristina Luna Ramirez posted a photo of the actor eating inside the Delco eatery, and a selfie she took with Affleck.

But Ramirez was not present at the restaurant when the actor stopped for lunch at Luna’s with his 17-year-old child, Fin, following a tour of Swarthmore College.

When she received a “frantic call” from one of her servers, she initially brushed off it as a prank. When she was finally convinced, she drove from South Philly to the restaurant only to find that her celebrity customers had left just three minutes ago.

She walked down the block to a nearby Dunkin’ Donuts (the actor is a fan of the chain, as is evident from his Superbowl “Good Will Dunkin’”ad). As soon as she opened the door, Ramirez spotted the 6′4″ actor near the front counter.

“I was like, ‘Oh wait, it is true. I didn’t believe [my staff], but lo and behold, there he was,” she said.

He turned toward her as she approached him, and he agreed to pose for a selfie.

“When Ben Affleck pulls up to Luna’s … you casually play it cool … then immediately freak out after 😂🌮🍹," Ramirez wrote in the caption for her Instagram post. “Happy Friday to us!”

“I was like, ‘This guy looks like Ben Affleck. But there’s no way it’s him.’,” said server Hailey Blum.

She fished out her phone and searched the internet for an image of Affleck and Fin. When she saw a picture of the two of them in New York just days before, it finally clicked.

“At that point, I was shaking,” she said, “I knew I had to give the best service of my life. No room for error here.”

It was Blum who called Ramirez, before walking over to Affleck’s table to ask Fin how they enjoyed their college visit.

“They said it was ‘cute and charming’,” Blum said.

Before making their way to Swarthmore, Affleck and Fin were photographed in New York City last week on their way to attend Daniel Radcliffe’s one-man show, Every Brilliant Thing.

Fin is the second of three children Affleck has with his former wife and actor Jennifer Garner.

At Luna’s, Affleck ordered the Mexican burrito, and Fin ordered chicken tinga tacos. Blum said the other customers did not interrupt their lunch or asked for a picture. But after they left, “people erupted into chatter.”

“A server shared that he was a great tipper, always nice to hear,” HughE Dillon, who runs the popular @phillychitchat blog, posted on Instagram. Dillon did not name his source.

The actor left a $100 bill on his $40 tab. He then stopped at the Dunkin’ down the block where Ramirez thanked him for visiting her restaurant, which just celebrated one year of business.

“It’s pretty amazing,” Ramirez said. “I’m just hoping his kid will go to Swarthmore, and then maybe we’ll see more of them both.”

Affleck, a Boston native, lived in Philadelphia when filming the 2004 movie, Jersey Girl. During the filming, he lived in Logan Square’s Phoenix Apartments with then-fiancee, now former wife Jennifer Lopez.

The film featured exterior shots in Cherry Hill and Paulsboro, N.J., while interiors were filmed in Havertown and other parts of the Philadelphia region, according to IMDB.

In 2009’s State of Play, Affleck even attempted a Philadelphia accent in his role as a South Philly congressman. The New York Times said he sounded “as thick and inauthentic as low-fat cream cheese.”

If Fin ends up attending Swarthmore, Affleck will have plenty of time to work on perfecting the accent.