I think you're right, but generally speaking the 5th amendment gives wide rights, so in any interaction with the police in America one should always keep their

I think you're right, but generally speaking the 5th amendment gives wide rights, so in any interaction with the police in America one should always keep their mouth shut, and if pressed say that you won't speak without a lawyer. They literally say: "Anything you say can and will be used against you in a court of law." That is not an exaggeration. It is very difficult to prosecute someone for a crime if they stay silent during the legal process, it's why the police are hyper-aggressive, they are trying to catch any idiot who will say anything that will get them arrested and charged, so they can report to the municipality, county (or state or whatever) that they have achieved x, y, z rates of charges, solved crimes etc., in order to secure better funding (meaning better salaries, benefits, pensions, and toys to terrorize you with).