I'm not sure why you are just letting her run free after being locked in the bathroom.
Pick her up and take her/them both out !!
You may want to start training her to go potty outside each time she is taken out of the bathroom. After every drink, meal, play time or nap!
Shes excited, plus (I assume) shes been in there for a while. If you want her to be totally in door potty free, day or night. Than you need to train her to do so. The most important thing is that she needs to be taken out doors to go potty before you allow her run of the house. The older she gets the longer she will be able to hold it, but until than you need to be on potty duty 24/7. It will take time, consistency and a lot of patience but she'll get there.
If for some reason you do not have access to a yard and there is not other option. Than I would put more potty pads in other areas of your home to give her more options. But I would defiantly start the training process before she gets into potty habits that can not be broken.
See if this helps", more tips on training on my site.
Training Tips - Dawn's Yorkies Ohio