when my vehicle was repossessed my wallet was in the car along with bank cards, credit cards, driver license, social security cards for family.

YOu have a right to retrieve those items. They also have a right to inventory them. Allowing your walltet to stay in your car with such valuable information is simply foolish. That stated, you may need to get a law enforcment officer to go with you get the items or hire a lawyer to sue them, at your expense initially, to get them back. Bear in mind, that some repo agents are underhanded and might just toss the items claiming they weren't in the car which is very difficult to deal with.