Im sorry to hear about that man. I've dealt with the same battery drain issues with the Technostalgia lights. As was meantioned in a post earlier, this problem seems to be more common than original thought. A representative from Technostalgia stated that the taillights will eventually drain the car in a relatively short period of time. It seems to be more of an issue if the car is only a "weekend warrior", or pure car show since the car won't be driven nearly as often as a daily driver.
I started a thread on the battery drain issue a few months ago. Definitely check it out when you have time.
http://www.camaro5.com/forums/showthread.php?t=263174
The only thing that can be done so far (without trying to rig up some sort of switch or ignition wiring) is to just buy a charger. I purchased the CTEK US3300, and used the wiring in the kit to make it a simply plug-n-play application from the post in the engine bay. It's way easier when it comes to where my outlet is located near the front of my vehicle, and I can keep the charger outside of the car on the ground to allow for proper ventilation. Somewhere in my build thread (you'll probably need to search CTEK installation or something along those lines), I have pictures of how I installed everything, and it wasn't hard by any means.
To be honest, just because an owner decides not to use the car as a daily driver, I don't think a battery charger should be needed to keep the battery from dying due to aftermarket taillights. The problem shouldn't occur to begin. However, it is what it is with these Technostalgia taillights. When the time comes, I'll be switching mine out for something else that I already have in mind. Technostalgias aren't worth the hassle, especially since I've had two dead batteries after the installation of the taillights within 2.5 months apart from occurrences.