Let the car sit, and the oil level should go back to normal (unless it was sitting already). Although this will surely cause a flame war among the "experts", give the intake the tiniest blast of ether to see if it will start. Before you do that, make sure it has oil and the engine will turn over by hand. A micro puff of ether will not hurt your car although folks will certainly chime in and tell you the world will come to an end. You need to see if the car will fire. Are you getting fuel?