Been hearing how if you're stopped by cops, ask if you're free to go, you want a phone call/lawyer, then say nothing else, all good.
No idea about police, but an interrogation/interview technique is to sit quiet after asking a question and even after you answer to make it awkward for you to talk more.
Personally, liked to embrace the awkward. But if you don't, think of it as a moment of zen, take a breath and center yourself, they only got you there because they don't got you. They wouldn't waste time if they did.
A bunch of technomancers in the fediverse. Keep it fairly clean please. This arcology is for all who wash up upon it's digital shore.