Rachel,
Thanks for asking your question to planDisney!
If
EPCOT is closed when you are done with dinner at
Topolino's Terrace, you would not be able to get through the park to get to your car. You could get back to the International Gateway entrance, but they would not admit anyone into the park. There is no connecting walkway to the front of the park that goes around the park. But I may have an alternative plan for you.
If you park at
Disney's Hollywood Studios, then ride the
Disney Skyliner to your dinner, you would be able to get back to your car. You would have to be heading back to Hollywood Studios within 1 hour after that park's closing, but I am guessing you are going to find that works out.
BONUS TIPWhen you ride the Skyliner between
Disney's Riviera Resort and Hollywood Studios, you will have to switch routes when you get to the Caribbean Beach station. But the changeover should be fairly quick.
Please feel free to
write me back directly if you have any follow-up questions!
Have a Magical Vacation!
Doug