Roxy - In a former life I was a LEO and have done thousands of pat downs; done properly it's very quick and professional. The groin touch (if done) is to check for a "padded feel" so it's just a light bump with the side of the hand. An officer who does dozens of these a day should be VERY smooth and quick.

I actually did a demonstration speech in my college speech class, showing how they're done. People were amazed at how minimal the touching part was.