Yeah, plenty of times.  Not happy about it, but rational thought is not something that you can count on when drunk.  I feel like more often than not I'm right on the borderline of the legal limit but I really try not to go anywhere near my car when really drunk...not to say I haven't in the past but it's something I'm working on. 
  
Now if you're talking driving under the influence of the hippie lettuce, I've done that way more.