The rookie cop who arrested Justin Timberlake for DWI is absorbing summer season within the Hamptons … and does not appear in the slightest degree involved by his newfound fame.

Michael Arkinson — the Sag Harbor police officer who pulled over Justin and took him to jail — spent his Sunday Funday on a ship, about an hour north of the place he busted JT. If you did not know, he and his accomplice, Otis, are cited within the police report because the arresting officers … however Mike’s getting credit score because the man who introduced Justin in for reserving.

Anyway … try these photographs/movies, obtained by TMZ, exhibiting a generally shirtless Arkinson sitting in an influence boat docked at a restaurant in Greenport, NY over the weekend.

Folks who had been there inform us Arkinson was consuming and ingesting at Claudio’s Waterfront … and saved a comparatively low profile within the wake of his huge bust, though it does not appears to be like like he was attempting to cover right here. Dude’s simply out dwelling life … undeterred by all the eye he obtained within the wake of final week’s arrest of Justin.

Arkinson, we’re instructed, was hanging with a handful of buddies — and so they spent a couple of hours on the seafood spot earlier than heading again to their boat.

The man’s already well-known round Sag Harbor. Locals instructed media retailers he is a little bit of a visitors stickler, and now he is much more within the highlight — a neighborhood celeb of types, if you’ll.

Based on what we’re seeing right here although, Arkinson’s not too bashful … and it appears to be like like he is aware of find out how to have an excellent time on Long Island, even after his title’s been blown up within the media this previous week.

Don’t anticipate to see Arkinson’s physique cam of his interplay with Justin anytime quickly, although — as we first reported, Sag Harbor PD is not releasing the footage … at the least not till their investigation wraps.

In the meantime, Justin’s persevering with his world tour … and Arkinson’s taking full benefit of getting pals with a ship.

Ya gotta think about the convos he is having currently — one thing tells us all of them begin with the identical query, about the identical suspect.