Comment Physical Passwords (Score 0) 47
A couple of people have mentioned this already, but unintentional activation seems to be a likely problem. Maybe opening your trunk should require a series of motions, like a physical password of sorts, to make sure you're doing it intentionally.
"Let's see...right foot in, right foot out, right foot in, shake it all about..."
"Let's see...right foot in, right foot out, right foot in, shake it all about..."