i obviously agree with this, and secondly, how on earth are you supposed to set this thing off? inside of the car?/ that would be great, no evidence, plus no car after it catches fire ...
or your other choice is outside of the car... i could see this.. you get pulled over and a cop is walking up and what, you open up the door and throw what appears to be a bomb out at the approaching cop? good luck with that.
i'll take my chances and act normal and like i have nothing to be afraid of at the time.. by the by, i've been pulled over 3x's while smoking in the car at the time and have never been busted.. one time i was even holding the hit when the cop was walking up and had to remind myself to blow it out before he got there...