How do I make the player go for himself without me controlin

Title limit^

Anyways I want to do some mini cutscene (not sure what to call it) that so when my player touches the finish line, it walks in place between the finish line without me being able to move around since I am going to play an animation for the player. Platform disable did not work since I can still move when touching the object.

Any ideas on what I have to do? Here is a demostration on what happens when I touch it:

This is what I would do.

https://www.dropbox.com/s/yelk4qdkwxbqz ... .capx?dl=0