That sucks, i knew that carpark was dodgy, i shop there quite often at night now i will be even more worried!
And to everyone saying stuff like get a better alarm etc, do you guys honestly think it will make a difference? You are wrong, who cares if you have microwave sensors what difference will it make? the theif will get in the car and the first thing they will do is pop the bonnet and shut the siren up(20 seconds if your lucky!). Besides since when do people take notice of sirens anyway! so dont think that your car is secure just because it has any type of fancy alarm, its not!
Anyway JZ lucky at least u still have the car, hope you have luck with fixing it up!