If you want to camp at Highwood Pass just get your tent out of sight of the road. Thats what a friendly park ranger told us once. Remember it is bear country so don't sleep with your food and keep a clean camp.
We once camped within spitting distance of the hotels in Kananaskis village. It was labour day weekend and we combined a bicycle tour with my parents 40th wedding annniversary which they were celebrating at one of the Kananaskis hotels. Being a long weekend the campgrounds were all full and we thought we would just duck into the bush and camp. Of course by the time we finished dinner and had a few drinks it was about ten o'clock and pitch dark. Didn't feel like riding down the highway so we walked along a gravel path that runs along the escarpment above the valley. It is separated from the hotels by a couple hundred meters and some forest. We pitched our tents next to the path and crawled into our sleeping bags. Woke up at six and hurriedly got our tents down, as the first early birds walked by.