if someone asks you politely to move. you move. Correct?
if the police ask you politely to move, you move. Correct again.
If you are with a group of people and the police ask you politely to move. Why do you not move?
Clearly if the police are getting involved, you are doing something wrong or protesting the wrong way. There are many ways to have your voice heard without ending up in cuffs. so please, think before you act.