Maybe it is just the state of our affairs here in America, but it becomes hard to read carbon copy answers to every inquiry on our Constitution. I am not putting anyone answer below or above any other, or saying any one is more or less right either. I have a black/white view on this, as there is no room for any gray area as far as anyone's rights are concerned, especially at this time. Illegality would involve a crime. That is it. Crime requires a breach of the peace offense. Crimes require a cop witness you commit a felony, damage property, injure a person, or have an oath signed by a judge, or signed statement from a reliable witness of you doing any one of these things. That is it. Everything else is a state statute, or city code or ordinance, which, as much as they would like them to be, are not, and will never be law. No matter how much they are used, or how accepted they become, statutes, codes, ordinances or local policy never becomes law,or gains authority by acceptance or usage.
Our Constitution is a group of restrictions on our government's scope of powers and authority. It is not hard to see how, having a belief of anything other than this, could cause the government to begin to slowly chip away at these rights, mostly unnoticed, and slowly set new rules, laws, and precedence in place until their authority becomes self-perpetuated, and they no longer believe their power is derived from, we the people, and to protect the interests of the same. When you see all of congress, and every other government official participating in even one closed door vote or meeting, or going against what the majority of their district has said they wanted on a certain issue, you had better believe they have replaced their required duty, and sworn to do upon an oath, to represent their citizen's interests, and not the interests of their own, another official, or a corporation. They have traded the protection of our rights for the revenue generating system it has become. These people are the ones in charge of making the laws.
So, though we all have Constitutional rights, these people have made it so if a person doesn't know how to assert these rights, the courts do not recognize these rights. And even if they did, and not found in the constitution, the courts have giving themselves immunity from liability for violating your civil rights, and that self made immunity could be, if not checked soon, the absolute beginning of the end of both our beloved Constitution and our way of life. True, all laws do have to stay within the bounds of the Constitution, and as we go down the list, (ie: state then city, etc.)these next ones are required to protect all persons rights equally, but are allowed to expand these rights as to allow more privileges and protections of these rights.
I hope I was able to give you a different way to look at that question, and encourage you to look everywhere for more answers. Knowledge is not power. That is a misconception. Knowledge is potential power, and the more you have, the better you can defend both yours, and others rights better in the future.