Stealth needs to be your constant waking thought when you are in camp. I know firsthand that it is possible to conceal yourself in a high density area, but it takes constant vigilance. A secret should stay exactly that; a secret. Don't let any of your co-workers know, even the ones you believe can be trusted. No way
I would be posting this in a public forum, but to each their own. Also, try to avoid setting-up in the same place more than a couple of nights in a row. Tracks don't take all that long to form and I promise you they will be evident come the end of the year if you keep walking the same path. What are you going to do when/if it snows? Your tracks will be obvious and curious to a snoopy person.
A heavy tarp might be a good investment. Something that will block as much light as possible. I assume you'll want to cook something from time to time, or maybe entertain yourself or make a phone call with your phone. It's amazing how far light can travel on a dark night, so having something heavy to block much of that light would be good. Stay very, very mobile. Again, a often used camp is not a difficult thing to find, even with excellent LNT practices.
As the great and amazing Jimi would ask..are you experienced? Meaning, have you camped through the weather and temps you are planning here? Anybody can suffer through a night or two of misery in camp. Are you prepared and capable of doing that for weeks...months? It's a fair question. Gonna be a tough thing to go from that cozy guest room at your GF's parent's house to a hostile wind and rain soaked hillside come Monday evening. It's like hotels/hostels when the weather is bad; nobody wants to go back on the trail. I guess you are about to find out, just be prepared mentally.
Of course, be absolutely sure you can't be seen. You can really only do that by setting up and walking where people walk while keeping a keen eye for where your selected site is located. You should
do this for every camp. Takes one bored and observant somebody to ruin your fun.
I will admit, it does sound like a bit of fun. I've never been one to give authority so much respect as that it takes away from my right to live free. If I'm causing no harm to another, I just don't see it as their business. I'm wrong, or course, but that's the way it is. I wish you good luck and safe sleeping. But, please, cover your six. With the way things are these days, squatting laws are being enforced with a heavy-hand. Just know that and take steps accordingly.