Is it legal for a towing company that repossessed my car to withhold my personal property until I pay a fee?

Question Details:

My car was repossessed in AZ. The repo company refuses to return my personal items to me without the post of a heavy fee. The company never informed me of such a fee after the vehicle was towed. They never made contact with me. They are charging me for "storing" the personal items that were in my vehicle since the day of the tow. It's a per day charge. Is this legal? I risk losing hundreds of dollars of items if I do not pay the fee. And I cannot afford the fee. So I now lose rights to my personal property? Important Notice