You're driving in your car with friends .  Cops stop you and tell you that you are being detained.  A police Officer asks?

Well they're possibly going to impound your vehicle because it was used in the commission of a felony but the best thing you can do is keep your mouth shut and say here I am I will go along with you without resisting. And when you get to the jail and get to make your one phone call you call a lawyer immediately and let him handle it in the meantime set down keep your mouth quiet and let your lawyer contact all of your friends that were with you. And arrange Bond. Unless you had a pocket full of counterfeit bills there's no jury in the world going to convict you for purposely passing counterfeit money

There's an awful lot of effort going into making kneeling on a handcuffed man's neck until they are dead an all right thing.

George Floyd wasn't the one in control of the situation. The cop kneeling on his neck controlled that situation and the cop chose to keep squeezing that neck until Floyd was dead. 

1 - I cooperate.

2 - What does "go along with the Officer" mean?  Physically go along?

Do some research.  You wouldn't be taken to jail to straighten things out ...

I tell the officer it wasn't me, but if they want to take me into custody, I won't fight it.  I'll have my day in court later on.