The best way is to tell him that, now that he hounded you excessively to pio-sneer, you would not be doing it with proper motive. The more they push pio-sneering, the more likely you are doing it to please man, and it would not count. If you can't manage that, just do a few hours of dummy service and turn in a fake time slip. If they can put 7.3 million on their reports, you can put 70 hours on your own report even if you do 4 or 5 hours of dummy service.
I am assuming you need college, because most people are not famous actors or musicians and you want to use it to get out on your own. However, this sounds like your father is trying to keep you from getting out on your own. You will complete college only to have to move back in, and then you will have to remain under his rules. And, with president Osama Obama doing all he can to ruin the economy, finding decent paying jobs is very difficult (and making your own requires more time digging through regulations that are arbitrary than researching the business itself). Which creates the need for dependency on the government--exactly the opposite of what you need. You get a student loan, you worry about finding a job to pay it back with Osama Obama ruining the economy. Grants are not easy to come by, and other assistance is not as plentiful as it once was.
Of course, you could always get yourself disfellowshipped altogether. Just claim you were researching a call in the Bible that wanted to know how, using the Bible and just the Bible, did they come up with the latest "a generation" information. Then, explain to the householder that you found that "a generation" referred to those who were physically alive while Jesus said those words, and that it was fulfilled in 70 AD. Mention that to the hounders, and you will be disfellowshipped for apostasy. And, since you didn't get this from college but from the householder request, they can't blame college for it.