I simply don't believe in being obstinate for obstinate's sake. It inconvenience ME, not the officer. When i was brought in by the police when i was younger, I could have been a yutz and invoked my rights. But, ya know, they had sufficient probable cause to have booked me. Instead, my cooperation allowed them to clear the matter up and I was cleared. Yeah, I coulda gone to jail on principle, but, why??? The cop wouldn't have been bothered, he had paperwork to do anyway. *I* would have been the one suffering. So, i chose to waive my rights and answer their questions, provide writing exemplars, and give everything I could in order to clear me. Ya know what, it worked! And I wasn't special - my parents didn't have money, I had no position or influence, etc.
Bottom line is that all because someone CAN do something doesn't mean that they must. You can choose to do something different. Choice is a wonderful thing.