McNabb doesn't seem sloshed in the video -- and couldn't have been nicer to the officers ... but in the end, cops believed McNabb was intoxicated and arrested him for DUI. Click 'SHOW MORE' below for related content...

Donovan McNabb DUI Video: I'M NOT DRUNK ... But That's Tequila In My Trunk https://www.youtube.com/watch?v=IDHf-hjzxgc
Donovan McNabb's Eye Test https://www.youtube.com/watch?v=Cs5BTRJ40wA

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