In order to arrest a person inside someone else's home, police need both a search warrant for that home, and an arrest warrant for that person. If the police entered your home pursuant to a valid search warrant, and found drugs in plain view, then you're likely out of luck. Your best bet is to get an attorney and fight the validity of the warrant. The fact that there was no public filing of the warrant doesn't mean it doesn't exist.
With an attorney, he/she can get all of the discovery and see what is happening with the warrant(s). It is important to look at all of this information to get a game plan. Do you have an attorney? If not get one for sure. I live in Moses Lake is I can help.