Maids a la Mode

At an exclusive dress shop, Thelma is a model and Zazu is a seamstress. While Thelma models a bridal gown for a wealthy older customer, Zazu makes an unexpected appearance on the walkway, causing havoc and getting the pair fired. After the proprietor calms down, he offers them their jobs back and asks them to deliver two dresses to an important client who's leaving on a midnight trip. Thelma and Zazu decide to wear the dresses to a party before delivering them. Is this a mistake?