alright so i get in my car let it run and then turn on the defrost, all of a sudden the oil light comes on so i turn the car off then the oil and seat belt light come on flash and the car chimes then the HVAC turns on i cant turn it off and ive completely removed the key from the car, like what the hell happened? is the HVAC fried? i cant turn it off its gonna kill my battery any help would be greatly appreciated right now i disconnected the battery and its sitting in my driveway

info: its a bone stock 99 gtp 2dr with the digital HVAC