Thought about that... but it would have to be a pretty big fly for the motion detector to pick it out... Also, I've been "double pushing" the lock button. The second push deactivates the motion sensor. In my case, the alarm still goes off...sigh...

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2004 Porsche 911 C4S X51, Seal Grey / Black
2006 Porsche Boxster S, Guards Red / Sand Beige
2008 BMW X5 4.8i, Black Sapphire / Saddle Brown
2001 Audi A4 1.8tq, Laser Red / Black, APR Stage 2, H&R Coilovers
2002 Suzuki GSX600 Katana, Yellow