If the material is good quality, and installed correctly you wont have to worry about it coming off.
Get it clean, use lint free rags to wipe it down. I apply them dry, and if its good material you can pull it back off if you need to move it. When you use heat, you heat it up to 180* and it will loose its memory and then hold the new shape when it cools down.
With air release material you should be able to work out bubbles....DONT poke it with a needle, that will just cause issues later.
After your done, set it outside in the sun for a few hours a couple times, it will just keep adhering better and "sucking down" to the surface.
Just take your time and it will turn out nice. These sled "kits" are so easy to do when compared to doing a full wrap on a vehicle where you stick a 5ft x 22ft piece at one time