Amazingly, in Washington state it is perfectly acceptable to pull bait and switch when it comes to gathering signatures on a petition. You can tell people that you're conducting a "survey" and get them to sign on the "yes" paper if they agree or the "no" paper if they don't. Of course, both papers are the same and are for whatever issue you are being paid to work.
You can tell people that the petition is about the opposite of what is actually about if you have a cause that actually isn't popular. Basically, you can do anything you want to and it's perfectly legal from I've learned.
In fact, you can do all of the above at the same time! Just watch this good representative of the "Christian Family" folks plows through the ninth commandment.