Just an idea for getting signatures: the Pacific Research Institute may
have a number of libertarians who live within the district who would be
willing to sign Phil's petition. Rather than getting them one by one
you might be able to get a bunch with one visit.
Might be worth a call to see if there is any interest and if an email to
staffers could be circulated there.
Contact info below
San Francisco Headquarters
755 Sansome Street, Suite 450
San Francisco, CA 94111