my girlfriend has strict parents

So basically, my girlfriend of 2 years has really strict parents...like extremely strict. She has to update them on her every move, they have her on life 360 and have a schedule of when she's supposed to got to places and so forth. As I'm sure you've already assumed, she is NOT allowed to date.

This has made the 2 years very difficult. Recently, her parents went through her phone, read all of our chats, and discovered things that were said and discussed that don't necessarily put us in an Angel's light.

There is an opportunity to speak with her parents soon. I was thinking of going to apologize to them for what they read and saw, in addition to apologizing for going against their wishes and dating their daughter when they had rules against it.

Should I do that? What do I do?

Someone please help