Sorry to hear that, some little scrote has just done the same to mine at the weekend. I am now missing my "Z" from my 350z logo on the boot.
As if the pleasure of paying for a new one wasnt enough, I also have a nice scratch where they prised it off. The missus car also had her BMW badge nicked. Really wish I could have caught them doing it, grr
Anyone have a spare "Z" they want to sell?