Hmm,, guilty as charged on placing it in P before applying EPB sometimes [bigwhistle] and yes, I should definitely know better.
We used to test trans "P" at work,, various special incline pads, and my fav,, driving at 40-60k and applying the P in the trans [biggrin] Its a great sound, but, the car will pull up as the speed gets slower, the pawl gets a chance to bite into the gear. Not something to ever try at home folks,, unless you can afford to have your trans rebuilt.
In my D1, parked up at work, a bloke decided to pull my car out with his winch,, broke the pawl :bat: Its actually not hard to do.
I think the EPB is a great feature, but yes, like everything else,, needs to be serviced. Its part of any mechanical device ownership.

