Is no car safe?

My friend Kailey's car was broken into in the school parking lot today. Window smashed, dashboard messed up, and cd player and cd's stolen. She's the third friend of mine this year who's had their car broken into at school, and I'm sure there had to be others. There's this release form you have to sign when you get a parking lot pass that says the school's not responsible for anything that happens to our car in the parking lot. But come on, this is a little ridiculous. The fact that someone had enough time to smash a window, which has to make a lot of noise, and get away with it is pretty lame. You would think with this many break ins the school would at least attempt to do something, maybe they have i don't know, but it doesn't seem like it.