What should I do????

I took a wrong turn today on my way to school, and kinda got lost, by the time i found a road i knew, i had ran out of gas[didnt put any in it..thought i wouldnt need to.] Then, i just trecked home through a cornfield for an hour, finally found the railroad tracks and walked for another hour.. What should I do? I took the keys with me, and locked the door. But my dad is gonna prolly take my license since i got lost. Should I call my gma and see if she can get some gas, and take it to the car. Then call the school and say i was sick? I get home before my parents every day so if i got someone to call i could be okay. Just tell her that ill do stuff for her at the house[mow, clean, etc.]