Something like that happened in QF1-2 at NYC. Our bot (far right in the link below) drives forward in Auto, stops, and then plows into the low goal without shooting. Prior (and subsequent) to that match, our Auto stopped the bot 1 ft shy of the low goal 100% of the time. Our alliance partners' auto was also interrupted (though its harder to see because they didn't have a ball).
http://youtu.be/DoGdrFZtdEI?t=2m2s
Sorry I don't have logs to post.