unless it is already in your S/O's orders, there is no law as to what parents can do with thier time.
Certainly she could attempt to modify the order, but your S/O could fight it, and/or request the same of her,and very likely win. (and I would charge her my legal fees for the frivolity of it all)
Here up North, courts really don't get into policing others morality, it is considered a BIG time waster in court. but some of these southern posts scare me**************
"It is easier to build strong children than repair broken men." Frederick Douglas