I called LSAC to ask about this, and had a pretty friendly chat. The guy said he has heard proctors letting you run to the washroom if you have a few minutes left at the end of a section, or when the 1 min break starts. You will have to do a room sc…
You should get your email at 12pm EST. If it's your first time you can access ProctorU by going to login and resetting your pw, lsac creates an account for you but doesn't sent it until 12. I just did this and was able to schedule