From the Facebook postings of happy fans both young and old celebrating their team in San Francisco Wednesday, it was clear that the parade came out the winner.

In San Mateo County, the Sequoia Union High School District reported absences up three times normal rates, with many parents saying their kids were going to the parade, while others cited "personal reasons." But, Giants fever didn't affect attendance in San Jose or Oakland, where districts saw no spikes.

The debate also raged on Twitter. San Francisco school Trustee Rachael Norton tweeted to Superintendent Richard Carranza on Sunday: "I am already getting requests for a school holiday on Oct. 31."

In a Tuesday message to parents, the district urged school attendance, but left a little wiggle room.

"There is a lot to celebrate with the Giants winning the World Series and Halloween," the statement said. "Each school community is determining what works best for its students and staff to mark this momentous occasion in a safe way. Every day and every minute of instruction counts so we encourage families to make sure their child is in school and ready to learn."

Norton said Wednesday that she sent her children to school, but several of her friends posted Facebook photos of their families at the parade. The San Francisco district and many others said it was too early to determine Wednesday afternoon whether they had more absences than usual due to the celebration.

Vicki Gordon, a Martinez district trustee in Contra Costa County, said she knew two parents who planned to go to the parade with their kids.

A teacher in Manteca, who did not want to use her name for obvious reasons, said she and her husband took their school-aged kids to the parade because it was a "once in a lifetime historic event," despite the fact that the Giants won the World Series only two years ago.

Staff writers Sharon Noguchi, Katy Murphy and Rebecca Parr and Judy Prieve contributed to this story.