I use a length of 5/16" fuel line with a "flag" of Duct tape as a "handle"
Dropped into the track like everyone else.
But like has been commented, it doesn't stop someone with a BFH,
a self-striking punch or a broken spark plug from breaking a window.
Remember that locks only keep honest people honest.
(Not locking things tempts honest people into being thieves)
A far better security system is what I call "870 phobia"
AD