Not tried but:
1. if it does work you'll have to run it so far back in the dropouts your brake won't line up.
2. My DK/Rain Kings just about fit ith the brake not lined up, ith a halflink they do fit but rub under hard accelleration. I have also chopped the side knobbles down.
3. Dont bother, get 2.5 max. Despite what you may be thinking it wont grip better, make you cooler, be bouncier or make you in any way a better rider 'cos you'll be hauling a huge tyre about all the time.