If you signed a written lease with your landlord for property subject to the association's requirements, you knew such as well as the landlord, and the landlord failed to tell you of the need for proper stickers on your vehicles resulting in the cars being towed, the landlord whould reimburse you for the towing and storage charges.You are renting the property. It is the landlord's or the property management's obligation to inform you of house rules. They failed to do so. I would write the landlord and property management company about what happened, sending a copy of the cost, canceled check and ask for reimbursement and hope they do the right thing.If not, your recourse is small claims court.Good luck.