Nope, never officially worked out drunk. But, when I was a bit younger, I lived in DC for about 9 months and did not have a car. Instead, I would bike everywhere, including home from the bars. There were a few times I probably should not have done so! Like the time my friend and I somehow crashed into each other (I totally blame her) and ended up laughing our asses off, bikes splayed, sitting in the middle of a DC street in the middle of the night. Or the time I did not realize I still had my helmet on until who knows how long later when I went to brush my teeth and saw my drunk and still-helmeted head in the mirror.
I've also played on a few soccer teams where we'd occasionally have some beer on the sidelines, and wouldn't always wait until the end of the game to drink it.
Indeed some good times, but in all seriousness, if you want to get a good workout, I'd say do that first, then have your drinks if that's your thing!