I have no true answer to this, but remember that it is not "completely legal" - it may be legal under your state laws (I am not a CO attorney and have no idea) but it is not legal under federal law.
This is not legal advice and is not intended to create an attorney-client relationship. The post is only an opinion. You should speak to an attorney for further information. The poster is licensed only in CT & NY. You can reach us at www.hamadlawfirm.com. If this post is useful to you, please remember to upvote it.