A garnishee who is a common carrier may transport or deliver property actually loaded on a conveyance, notwithstanding the service upon him or her of an order of attachment, if it was loaded without reason to believe that an order of attachment affecting the property had been granted, unless the claiming authority gives an undertaking in an amount fixed by the court, that the claiming authority shall pay any such carrier all expenses and damages which may be incurred for unloading the property and for detention of the conveyance necessary for that purpose.