Lien Holders Rights

My car was impounded for 30 days by the police on 02-28-2008 for driving without a drivers license and the only way to get my car back fast was to get a drivers license before 30 days to recover it and not pay alot of money to get my car back or wait the 30days and have someone with a drivers license pick it up for me. I'm still paying of my car to County Financial Services making my payments on time every month, on 03/11/2008 i got a drivers license so i made an appointment at the police station to speak to a hearing officer and get my car back on 03/13/2008 i spoke to the hearing officer he said it was ok for me to get my car back to give the officer the information of my car when i gave him that information he said my car had already been picked up by my financial company on 03/04/2008. The financial company never called to say they had my car or anything like that until i found out at the police station i called them to see what i had to do to get it back and they wouldn't give me any information of were they had my car or how i could pick it up till i send them $598.00 dollars. i paid the total of $950.00 to get my car back from the financial company when i could of paid a total of $525.00 at the police station is there anything i can do at this point i think there taking advantage of the situation. I recieved a letter today saying that if i dirent pay the fees before 03/21/2008 they would sell my car when i could of picked up my car until 03/29/2008 at the i