Hundreds of people ignored social distancing guidelines and partied their asses off at Devin White's "Trail Ride" charity event over the weekend ... and video of the scene is alarming.

The Tampa Bay Bucs linebacker -- despite surging COVID-19 cases in Louisiana -- decided to press forward with his 2nd annual "Trail Ride" event in Cotton Valley on Saturday.

The problem? Hundreds -- if not thousands -- of people attended ... and even though White said he'd urge hand-washing, mask-wearing and social distancing, it's clear those precautions weren't followed seriously throughout the evening.

Check out footage from the event ... partygoers can be seen mask-less, dancing amid a sea of people. At one point, you can even see 22-year-old White partying without a mask.

We reached out to Louisiana State Police, as well as the Webster Parish Sheriff's Office, for comment on the event ... but so far no word back yet.

But, reps for both departments had told us last week officers would be at or near the scene of the party to assist in traffic control ... although neither said definitively if they'd help enforce social distancing guidelines.

Meanwhile, the mayor of Cotton Valley, C.C. Cox, told TMZ Sports he was allowing the party to happen because, "That's what he wants to do, he can do it, you know?"