My car might be repo’d, what should i do?

Okay, i skipped about month and half on my car payments and my mail goes to my mom house. So i saw the mail the other day about the late fees and the payments i owe on my car. I called the people who i make payments to and they said that it was too late to setup an arrangement and that if i dont pay atleast a month of what i owe then i have to turn my car in. Well I dont want my credit messed up so my options are, Do i sell the car for what the rest i owe which is only about $2,000 left