You can get it out with 2 people and "windshield wire". You should be able to get the wire at a good autobody supply store. The hardest part is getting the wire started. A good sharp fish fillet knife through a lower corner is usually the best place to try. Spray the area and knife with a glass cleaner as lubricant. Then with one person inside and another outside, holding the wire with vice grips "saw" through the sealant. If you drag the edge of the glass, most likely it'll crack.
BTW :I'll never garauntee that I can get a windshield out without breaking it