I think the issue is simple:
If you were the person who took the fasteners loose and put them back in place before this happened, you should eat the cost of replacing them and be more careful in the future. They don't come loose unless you don't get them in right.
If the dealer was the last one who took the fasteners loose and put them back in place before this happened, then they should eat the cost of replacing them and be more careful in the future. They don't come loose unless they don't get them in right.
If you were the person who took the fasteners loose and put them back in place before this happened, you should eat the cost of replacing them and be more careful in the future. They don't come loose unless you don't get them in right.
If the dealer was the last one who took the fasteners loose and put them back in place before this happened, then they should eat the cost of replacing them and be more careful in the future. They don't come loose unless they don't get them in right.