Um, wow. Nice work.
It does illustrate (duh) that by not encrypting their wireless coms, their system is vulnerable to straightforward reverse-engineering of the RF protocol.
It also illustrates that this vector isn't much of a threat for your average burglar.
However, between the two threats, it wouldn't take a genius entrepre-thief to make a simple device and sell it to thieves (like the ones that exist for some cars).
A million customers someone said?