Because it sounds like the only RipOff may be the way you are running your company.
If you are not paying yourself, what good are the financials of the "company" going to do. Is it the companies car or your car? I am sure the IRS would love to know about this arrangement where you don't pay yourself but are able to redeem a reposessed car based on COMPANY financials. If you wanted to prove YOUR finanical worthyness you would supply them with YOUR tax returns proving income, how ever you get it.
But lets say you do redeem the car, how in the world are you going to continue to pay on the loan with no income? Again, this sounds like you and your partner may be doing something I am sure the IRS would be interested in.
I am NOT defending their attitude, and it does appear there was some "attitude" on both side. But you borrowed several thousand dollars for a car. Part of that agreement was that you would pay back a set amount of money each and every month. It was not only IF you can, or only if you don't have other problems. It was EVERY month. Once you became behind they reposessed the car. They are under NO obligation to let you redeem your car and continue payments, especially if they feel that you won't be able to. This is why they appear to be requiring you to pay off the loan in full in order to get the car back.
As for the balance you think is incorrect. You need to make sure you are including the additional interest, late fees, repo and storage fees into the balance you think you owe.