The monsters in the film and its sequels, such as Dawn of the Dead and Day of the Dead, as well as its many inspired works, such as Return of the Living Dead and Zombi 2, are usually hungry for human flesh, although Return of the Living Dead introduced the popular concept of zombies eating brains.
The lesson is: No one knows what your tonge is going to do. The only way to know is to take it out and see. So you have two options you can hang out at home one day, take your tongue ring out, and try putting it back in every few hours. If it slips back in after 2 hours being out, try 4. If that works, try 6, etc. You can even leave the piercing out overnight if you want to test it.
It is best to keep ice on your tongue as much as possible the first few days. Do not eat spicy food for the first two weeks. You are suppose to keep the longer piercing ring in for 10-14 days time depending on when the swelling goes down. Your tongue will be swollen for a few days to two weeks. If they do not give you a rinse, then you should buy some kind of sea salt solution and rinse with that. You could use Listerine but it is not recommended for the most part not right away. After about two weeks time you can change it to a smaller barbell. I would use a metal bar but acrylic balls. Acrylic balls are less likly to crack your teeth and wear down your enamel. Best way to change your tongue ring is to take the first one out, and replace it with a clean new one.