Bill Hogarty refers to a "canopy bust-out tool" to break the canopy.  I
found one at Harbor Freight with the necessary metal points and a harness
cutting blade, together with a snap-in holder, designed for use in cars.  It
was on sale, and cost me all of $5 if I remember correctly.  As my 360 has
the original thinner canopy, it should work OK.  It is probably effective on
a thicker canopy or window, but you might want to try it on a scrap piece
first

Jerry Fisher