This same report was submitted via email to my website about 6 months ago. After reading it I was both curious and doubtful. If they had turned east and drove for 2 or 3 hours, it would have taken them close to the plains of Saskatchewan. If they had turned west it could have taken them to any number of places, some not accessable by vehicle. Her 'ex-stepdad's' "secret camping spot" would most likely have been close to one of 4 places: Sundre, Rocky Mountain House, Lake Louise, and Kicking Horse Pass. These areas, with the exception of Lake Louise, are frequented by all sorts of hikers, campers, and off-roaders at all times of the year, so secret camping spots are hard to come by, unless your willing to backpack it in from a variety of Forestry roads. Sundre and Rocky Mountain House do not have -10 to -15 temperatures in September, even at night. So this leads me to believe they were around Lake Louise or Kicking Horse Pass.
If her ex-stepdad had just yanked his truck off the road and carved a path through the trees in the Lake Louise area he could be subject to a nasty fine and a good chewing out by some Forestry Official, as Lake Louise is part of Banff National Park, ie: Registered campgrounds only, no "secret camping spots" off in the forest that you hack out yourself. So this leaves the Kicking Horse Pass area.
Kicking Horse Pass does have some nice areas, but most of them are hardly secrets. It's a pass, people go through it on a regular basis, and some of them do camp and explore in the region, so any "secret spot" would more than likely be occupied by someone else at different times of the year, each one of them thinking that the place they were camping in was a place that they had discovered and that no one else knew about.
The reason I'm so critical with this report is that I tried to follow up on it, and the "witness" cut off all communication, even to the point of blocking my email address after I had sent her but one email. In the email I simply asked " I would like to follow up on your report, you don't have to give me your name, just give me a better idea of where you were camped". That kind of attitude spoke volumes to me.
To this day I still somewhat believe that the "witness" may have saw something, maybe even from a distance, but from the sounds of it she decided to add more on to the report to make it sound better, and that was where she hung herself. But, on the off chance that she did actually pet something outside of the tent, from the description she gave it sounds like she was petting a Bobcat or maybe even a Lynx, if that's the case she's lucky to still have her hand attached to her body. She also made note of the animal smelling like a fish, perhaps the splashing she heard was the Bobcat/Lynx tracking a fisk in the small stream.
Anyways, alot of what I've written here may not be 100% accurate. But I'm just going on what information and knowledge I have of this area, after all, while growing up I did alot of camping in the northwest forests of Alberta.
JMO