Sorry to hear about it, at least it was only a Focus. If it involved any damage (hope not), I would have taken a pic as long as you had a witness. It shouldn't have crept too fast at all. I've only had a half dozen mtx's (yep, American, most have been autos) but recall several manuals stating point-blank 'always engage the pb'. It makes sense, even if they sometimes lock a bit in cold weather, to 'overuse' it rather than let it rust up and become useless. I'm not sure how the disc 'auto-adjusts' for tension but I yank it up snug every time. Takes tension off your clutch....important point, that one.
