The issue is this is not a kid. It was an adult woman and she was the manager. As a manager at a store that carries multiple types of snakes you should at least be comfortable enough to handle them for general care. If you cannot even manage moving one then frankly you should not be in charge of a store that carries animals. Additionally she told me to get up on a ladder and move them myself. I have worked retail myself and can tell you that had something happened and I fell off the ladder or one of the snakes had bit me, they would be liable for that. Again that is something she should keep in mind as a manager.
I realize this is a major chain store and a lot of what they do is not right, however, that does not change the fact that they should AT LEAST know the basics... especially something as basic as moving an animal.