Rule #1, always confront a cop w/ respect
Rule #2 never look like your suspicious of doing something wrong or being paranoid lol, a easy give away. Be proper and civilized.
Rule #3 tell the cop the truth cuz if your lieing they will automatically avoid getting you off of something and will be more aggresive w/ charges.

Follow these and you wont have to go thru those BS. procedures you went thru.