A friend of a friend has a car with one of these. It might be possible to bypass it, but blocking the signal isn't the solution. He parked his car in an underground garage, and when he came back it wouldn't start. Turns out if the disabler hasn't received a ping in a certain elapsed time it also disables the starter. He called the loan company, and they had to send a technician to get the car to start, and be able to drive out of the garage.