RAs are a joke, you just need to figure out why they care...
IE: couple nights ago, were chilling smoking in my room. RA knocks, establishes the fact that it reeks of bud. We know they just care about you smoking in the building, so i say "Oh, i'm sorry, we MIGHT have been smoking outside, and it probably just followed us in." RA says thank you for smoking outside, and leaves.
the key is to be nice. its their job, make it easier for them, and they'll make life easy for you. So if you get busted having a party, get everyone to shut the fuck up, turn down loud music, open the door sooner rather than later, and be apologetic and accommodating.