AIf I park up in the garage it sits
Level but as soon as key is removed it adjusts itself back on a tilt.
I'd be tempted to go back to basics. Get her level, pull the EAS relay and then switch off and lock her up. See if she is leaning in the morning. The EAS computer shouldn't do anything so if it has moved then it is a leak somewhere.
If she isn't leaning then maybe a height sensor or the driver pack or something is acting up. I think there are 2 types of height sensor? Correct replacement?