The “oil light” is not an oil level light, or a change your oil light. It is an “oil pressure” light. It comes on to tell you when you have no oil pressure which means no oil flowing inside the motor - which is bad, very bad. A motor will seize up, stop running, and you’ll need a whole new motor if you run it without oil pressure.
You should have the car towed to a mechanic and have the car checked to see if you have oil pressure or not. It could be a faultly sending unit telling the light to go on when in fact there is oil pressure. Or, it could be your oil pump has failed and there is actually no oil pressure. Running the motor is risky unitl you know for sure what is going on.