see now this is a creative effective form of punishment: It's teaching her a lesson and hopefully rehabilitating her behavior. as opposed to getting an ankle monitor and being confined to house arrest or probation or community service or something, all which would do nothing to teach her how workers in the fast food industry should be treated with dignity and respect as fellow humans.
The only problem is imagine being the manager of a fast food restaurant and knowing that this vitriolic woman is on your staff and you need to keep an extra eye on her to make sure she doesn't lash out in anger at colleagues and customers