Based on my experience, a strongly and clearly written letter to Senators Boxer and Feinstein against a piece of statist promoting legislation will earn a response letter thanking you for your support of said legislation.
Kudos for your attempt anyway (I understand what your are working against)!
Sign the petition:
http://www.dontfundobamacare.com
(PS I’ve actually had a very different response than yours. Though it was several years ago, it demonstrated that one letter CAN make a positive difference.)