those krypto cables are not that easy to cut, you need a big-a** bolt cutter and its STILL not just a quick snip.
my son has the right idea at his college. he parks his vintage funky looking but really rather nice steel road bike right next to all the carbon fiber S-Works yuppiespawn bikes (who in his right mind buys his college kind a SWorks Roubaix to take to school and leave outside in the rain all day ?!?). If anything is going to get ripped off, it will be the carbon shiny stuff, not the funky old trek with a mixed bag of vintage parts on it.