Since 9/11 and the implementation of the security checks, they've allowed party goers to enter for the party with just their party tickets, after 4:00p. That way not everyone is entering at the same time.
You will be fine after 4:00p if you do not want to use a day on your park tickets.
You can eat at any of the restaurants without using a park ticket as long as you enter after 4:00p.
They will give you a wristband in exchange for your ticket and those without wristbands at 6:00p, when the park closes, will be escorted out.
You can make your PS at LTT and Tony's now if you are going to one of the parties. The rest of the sit down restaurants will open up PS at 90 days and will take PS up until park closing at 6:00p.
