Ahhhh, this is why I stopped growing autos for ever, too many weird and unstable genetics. What you have is all it is ever going to be and will never develop into anything meaningful. Sadly you have been ripped off of your time, money and effort by growing this sad and unfortunate individual, the pitfall of autos I'm afraid to say. I believe in all their haste to get "products onto the market" while the auto flowering craze/fad is in full swing and before everyone realises they aren't all they are cracked up to be, the breeders in some seed banks have not spent enough time and effort stabilizing the plants they are selling, 100% yet. Plus, working with weird Ruderalis wild cannabis genetics, throwbacks are inevitable. Nothing like the genetic stability of pure photo period plants that have been undergoing development for 40 odd years. You could write to the breeder and complain and you might get a sympathetic response if you go about it tactfully and nicely, saying how disappointed you are and how your faith in their company has been lost etc etc or blast them, and they will just say it is all your fault, sometimes these things happen, you did something wrong or the seeds they sell are for souvenir purposes only and you shouldn't have germinated them blah blah blah... none of which will help you.
As to what now? You could give it someone who is desperate or make edibles with it or just throw it away and chalk it up to experience. I share your sorrow and disappointment having been there before, but far too many times for my liking. These days it is photoperiod plants, or it nothing for me. My condolences to you. Organoman.