Damn, thieves! I had to sell my integra because of them!
but my experience for protecting my integra from theft, LAYER your security.
My security was a pager alarm that had all the features installed such as hood pin switch, doors switch, trunk switch that is activated to kill the ignition when the alarm goes off.
I had the steering wheel lock....I know these are a joke. lol like I said "LAYER"
I had the clutch pedal lock....another "LAYER" of security.
Lastly, and the best security you can get is a fuel cut-off switch "kill switch"
hide the switch really well and activate it when the car is parked...thieves arent taking you car anywhere until they can find that switch to deactivate it.
A thieves worst enemy is time. the more time they spend "trying" to get through all your layers of security the higher the chance they will get caught in the act. which brings me back to, layer your security.