Razano; i understand your point on not giving them information as easily as they'd like to have it, but, that does not mean they will not continue to stop you, eventually, you too will get too tired of being chased, stopped, interrogated, and harassed.
Most people, especially men, would be stopped and beaten for the smallest of issues; i.e. not carried their national identification cards, which we have to carry even if we are walking to the store to by chocolate.
i feel privileged that i can argue with the police, tell them i disapprove, i am a woman and from Jordan. Even when heavily harassed and threatened to be taken to jail, at the end of it all, i am not taken to jail, not yet at least. But what about the rest of the population, those who mostly say yes sir, of course sidie, etc.?
These are difficult times and we are wedged between religious fundamentalism, conservatism, and the government with its police backing it up.
i think any small action is a form of resistance; if we write something, say something, argue slightly, do not stop for random searches, and increase our own awareness of the realities around us. All these are forms of change.
