Voting in person in California wont matter. If there are mail in ballots being considered, then expect the State to tally up the votes that were done in person and create ballots to make up for the ballots they need for the person they will install.

It's an equation that can easily be filled once they've counted all the in-person ballots.... and being as though the US citizens don't have the power to have audits or anything, we'll never know the truth of who's won.