I had to say that I'd never seen any1 do a drift in a regular situation either. But I'm sure it happens b/c as a dragger I do pulls on the regular in everyday situations.
I wonder what exactly the cop saw/heard --- I mean, it could have been as simple as "well you were going too fast for that curve --- so driving too fast for conditions." Who knows. We saw it from the beginning... but maybe the cop only saw him going too fast around the curve... who knows...