Video shows the officer dancing to a few beats with another reveler before disappearing into the crowd.
Mardi Gras is back in full force in New Orleans this year after the city canceled parades in 2021 due to the coronavirus pandemic.
The carnival season started on Jan. 6 and will run through Fat Tuesday, which falls on March 1 this year.
Various parades took place Sunday in the French Quarter, Slidell, and Uptown New Orleans.
"I’m very excited for Mardi Gras to return to the city of New Orleans. It does give us some sense of… bringing back some normalcy," New Orleans Mayor LaToya Cantrell said at a press conference this week.
"At the same time, it’s very important for us to realize we are not under normal times."
The city still has an indoor mask mandate in place and requires everyone over the age of 5 to present proof of vaccination or a negative PCR test to go to restaurants and bars.