He didn't attend the funeral Mass, no.
However, this was in today's Pittsburgh Post-Gazette:
"It was a wonderful, prayerful experience," Metropolitan Basil Schott of the Byzantine Archeparchy of Pittsburgh, said of the Mass. "Everyone will take encouragement from the words of the Holy Father."
Schott summed up Ratzinger's message as "three C's."
"It was about certainty of faith, about charity and about being catholic, in the sense of universal," he said.
http://www.postgazette.com/pg/05115/494018.stm Does this mean he was there? I couldn't tell from the pictures or the TV, so I'm not sure.
