They are professionals with a single goal in mind and years of combined training and practice to learn how to acheive it. If you think you can somehow talk them out of doing what they came to do and not put yourself in a worse position than what you began with [1], you are either a very good criminal lawyer or are being naïve.
[1] e.g. by making a false statement in violation of 18 USC 1001, and trust me, they will be counting on it and have planned for it)
https://www.popehat.com/2007/10/26/shutupshutupshutupshutup/
https://www.popehat.com/2011/03/18/just-a-friendly-reminder-...
https://www.popehat.com/2011/12/01/reminder-oh-wont-you-plea...