xzafareman,
So long as you don’t make any material misstatements to police, you can’t be charged with a crime for refusing to cooperate. If they present you with a warrant, or if your home is a crime scene, you must let them inside. In this scenario, we recommend that you not say anything until you’ve spoken to us. Police have not had a problem with our members doing this in the past. If they don’t have a reason to be in your home but are asking consent to come in and search, we definitely recommend that you not give consent.