No.

Creatine does give you increased muscle fullness and hardening.....but this is due to water retention.

While you're away try keep your protein intake as high as it normally is. This will be the key to retaining muscle.

Also don't worry so much about the 2 weeks off. 2 weeks isn't really long enough to see any significant change in muscle mass....unless you get severley sick.

Muscle memory will also play it's part in getting you back to where you were, if any muscle wasting occurs.

Relax and enjoy your holiday. Everything will be fine.