A popular YouTube activist who was arrested after he showed up uninvited at the Suffolk County PBA’s headquarters had his criminal charges dropped by prosecutors on Wednesday. 

Sean Paul Reyes, aka The Long Island Auditor, showed up to court in a t-shirt that read “resist tyranny” as his misdemeanor trespassing charge was downgraded a violation — with his attorney claiming a now-viral video undercut cops’ claims.

“Having watched the video, I knew that these charges were more than a stretch,” Paul’s Brooklyn-based attorney, Jacob Uriel, told The Post. 

Reyes is known for filming a series of videos in which he shows up to public buildings, and “audits the First Amendment,” which is essentially testing whether officials will call authorities and ask him to leave.

The downgraded charge, introduced by the Suffolk County District Attorney’s office, comes with a maximum penalty of 15 days in jail. 

PBA President Lou Civello had accused Reyes of refusing multiple orders to leave the property and alleged that Reyes threatened Civello and said, “I am going to go to your house,” according to the original complaint and comments to The Post. 

The initial complaint incorrectly described the area as fenced in, but that was dropped in the amended complaint, which Uriel said led to the downgraded charge. The attorney also said the amended complaint doesn’t include any alleged threats by Reyes.

The new filing said that after Reyes was told to leave, he walked backward toward his truck and “engaged in conversation to prolong his trespassing rather than vacate the premises as repeatedly directed.”

The attorney claimed his client was handcuffed so tightly by the PBA president that the metal pinched a nerve in his hand and required medical attention.

Reyes pleaded not guilty to the violation on Wednesday, and denied he made any threats against officers.

Civello did not respond to a request for comment, but told The Post last month that he started receiving death threats from crazed fans of the YouTuber after he posted video of the lead-up to the arrest.

The activist has more than 1.03 million subscribers on that one platform alone. 

“Since Mr. Reyes began his online campaign, I have received numerous death threats which are under investigation by the SCPD,” Civello stated at the time, adding he would not be intimidated. 

Reyes said he denounced any crazed followers intimidating Civello.

The Suffolk County District Attorney’s office declined to comment.