Key broken in ignition, car ran two and a half weeks, lost power, stuck in position 1 or 2

This is a complex one. I am unfortunately an victim of domestic violence. My ex broke my key off in the ignition switch. I was able to get the key fragment out and I was able to use the push button start. My ex found my car unlocked which I accidentally left and put that fragmented piece of key back into the ignition switch to attempt to steal my car. I was able to put my key fob in with the key stub still attached and start the vehicle but the push button would not work anymore. And I could not get the car to go from position one or two back to position 0 off. So I drove my car 2 weeks approximately like this with the key stub on the fob and fragment inside the ignition and left the car in the ACC mode. The car would start and it ran and suddenly lost power while driving. Lost power steering lost power brakes coasted to the side of the road. Car still in the ACC or on position. But will not turn over now. So now I have a piece of key fragment inside the lock or the ignition. The car is stuck in ACC so I'm not even able to release the piece of fragmented key from the ignition. And a car will not turn over. What can I do to fix it how can I get my car to go from ACC back to the zero position off so I'm able to get the fragmented key out. I am so frazzled and I just don't know what to do, this man is ruined literally every part of my life in a matter of the month and a half. He's in jail and I'm stressed please help. I am so poor from this nightmare, staying in hotels to hide, and him stealing $10,000.00 from me and mooching off my income alone since August and really cant replace the ignition right now. PS: I do believe there's a possibility that my battery maybe low I am going to get it checked today. I have jumped it multiple times but I have a feeling that the battery isn't supplying enough power to turn over the car. Is that a possibility is that why I can't get it from ACC back to off position? Thank you guys just a girl trying to get her life back together.