Frist of all, tow the car home or to a shop. You don't need a per day storage fee on top of the repair bill if it is tow by a wrecker without you knowing (plus you will need to call the cops to find out what happened to the car).
Engine light came one. Was it the check engine light (yellow)? If you can get that scanned, most of the CEGers can help you diagnose it more.
Don't give up. Most of us have been through this before. You will notice that once you have more info, everybody will chime in with their experience to help you through this.
