The issue in question is the newly initiated policy prohibiting students from using cell phones in between classes in the hallway. Personally I am against this rule. Many people may argue that students should spend their time walking to class instead of on their phones. However, many students have classes in the same building in close proximity to each other. This leaves students with a wasted use of time spent staring at empty seats. A student could capitalize on this waste of time by checking Angel or important messages. If a student is late to a class then that student should have his/her privileges revoked.
Another key point is if you have a punishment you should also have a legitimate reason for choosing that punishment. If you don't have a reason for a punishment besides "because I said so" than that punishment loses legitimacy and shows a lack of thought and frankly a lack of caring. These things are not desirable traits for a principal to have and I doubt that is what Ms. Quinn wants to portray, but they come through.
Personally, I believe if more information was given about the choice of punishment it would start to clarify her reasoning.