About 5,000 people showed up to memorialize actor Paul Walker and car enthusiast Roger Rodas in Santa Clarita yesterday, sheriff's Capt. Mike Parker told reporters.

See also: Paul Walker of 'Fast & Furious' Franchise Dead in High-Speed Crash.

The gathering was unsanctioned and didn't have permits, authorities said, but cops decided to step aside and let Walker's fans, in the kind of import customs that were a signature of the 40-year-old's Fast and the Furious roles, ride on.

Traffic was tied up and parking was nonexistent, but it was a peaceful event (photos and video at the bottom):

The captain said a few thousand cars showed up, with several of them towed and 40 cited for illegal parking.

A 29-year-old was arrested after cops spotted him walking down the sidewalk with the butt of a gun sticking out of his waistband, according to this report. He was allegedly carrying a concealed and loaded weapon.

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Fans signed wall-sized artwork dedicated to Walker and Rodas, who were friends. Someone brought and set up a Christmas tree. There were plenty of flowers and candles. And custom cars cruised slowly around a loop, part of the most solemn car show ever.

Parker said about 13 different Facebook pages encouraged people to come to the site of the duo's death between about 2 and 5 p.m. Sunday.

See also: Paul Walker Died of Traumatic Injuries, Coroner Says.

Walker was riding in a rare, 2005 Porsche Carrera GT that Rodas was driving when it crashed and burned on the afternoon of Nov. 30.

Both men were dead at the scene.

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