And I'm sure you think God wants you to picket this poor, dead man's funeral because there is no better way of expressing your own ignorance and intolerance than by disrupting an event that honors someone's life. Moreover, the act leaves an extremely bad taste (to say the least) in the mouths of everyone who is there to mourn, remember, and say goodbye to that person so the likelihood of anyone appreciating your action is even less than slim to none. Therefore, the point is...what, exactly? To show everyone how hateful you are?
I think your point has already been made. So maybe just let the guy rest in peace.