My man, you need to think about what you're saying. If there's any entity in America you need to be extremely vigilant about protecting ALL of your rights with, it's the police.
Not only that, but he was FAR more helpful than he should have been. It wasn't his building, even answering the door was a big mistake. Letting them in and allowing them to search was far beyond the pale of how helpful he ever should have been in that circumstance.
Don't ask me, ask the guy who does the videos. That channel has reviewed literally thousands of police encounters, is almost always deferential to the police, and very rarely gives the police an F grade.
Like, seriously, the COPS are the ones breaking the law here and you're still hung up on what the guy should have done. That should give you a clue that your perspective is warped in the wrong direction.