Has this ever happened?

The ticketed events like MNSSHP and the Extra Magic Hours, you know how they technically start at a certain time but you can enter the park a few hours before? If you have a package, has anyone ever had them take one of your park days when you entered early instead of just the party ticket?

Haven’t experienced it personally, but yes, it has happened. I think you want to make sure you do not try to enter earlier than the time specified for the hard ticket.

Ticketed events have an earlier entry time (I cannot think of an exception to this?). For example, MNSSHP begins at 7 but you can enter with your party ticket, at the designated entrance by 4:00. In some cases (DVC) it is even earlier. If you enter before that time you will enter through the regular entrance and it will take a regular ticket.