Even if I get past this without being disfellowshipped,
Cunningman - for what its worth, df'ing isn't on the table over this. The worst that can happen is that your father could potentially be removed. From the accounts of what the CO outline says, it seems that it isn't automatic deletion. If you are being "encouraged" is the key. It sounds like your paying for college yourself and that the only thing your parents are doing is allowing you to live at the house. Understanding their silly rules, they could say that your father isn't encouraging you because he isn't paying for your education. Similar to the way they view an elder's kid marrying an "unbeliever". The parents can go to the wedding but can't offer any financial support since that would be "tacit approval" (I kid you not - this rule is also not in writing but delivered via a CO outline). But, if they so much as pay for the flowers, the father will be removed (I've seen it happen and know all the details).
How popular is your father? That's what it is going to boil down to. If he's well liked by the BOE, they could reason that since you are so close to graduation, you've been going for several years and he's not paying for the education, that he still "qualifies". Especially if you still go to meetings, which is probably worth it right now until you can get on your own.