Report Abuse. Unless the dealer offered you a 30-day return policy in writing, you cannot return it. Car sales aren't like buying shoes that you can take back to Target if they don't fit.There is no return or cooling off period in any state.Used cars are sold as is, meaning you get only what you bought. AG is incorrect.eport Abuse. Unless the dealer offered you a 30-day return policy in writing, you cannot return it. Car sales aren't like buying shoes that you can take back to Target if they don't fit.