I would go further than to say just ignore it... I would ignore HER. On your returns home or upon the arrival of guests, she should not be greeted, people should not meet her eyes, people should not speak to her excitedly, people should not bend over the top of her to reach down and pet her. After she has calmed a little, she can be greeted quietly and calmly. To pet her, folks should squat down with their backs erect and not bend over her and into her space. Any "high" emotion is liable to trigger submissive urination... excited, angry, anything loud.
I would also have her tested for a urinary tract infection. Often, this is a factor in submissive urination which persists... even a very slight infection may make it too difficult to control urination.