In Washington State there is no requirement that you actually be booked or even arrested in order for the State to charge you with a crime. Often times, like in your case, the first indication a defendant has that he is being charged with a crime comes in the form of a summons from the court with a notice for arraignment. It appears that this is what happened in your case. As to your question of whether this will go on your record for life, that will really depend on what happens in your case. You should contact an attorney to formulate a proper defense. Please follow this link for more information: www.glblaw.com
What you got is a summon or "promise to appear". It is just like an arrest, but in reality there wont be any fingerprints sent off to the FBI or State Police.
However, treat is as if you were arrested and show up in court as noticed. Call a local lawyer for more info.