A) You didn't have an alarm( at least if it went off for 10-20 sec. before they ripped it that you could've heard it)
B) You prolly marked urself with ur tint and by bumping thru campus
Sorry bout it all but and hope that its somewhat covered under insurance. Oh, and it looks like a bottle of aids spilled all over ur trunk. They had to be cranking the shit outta that for like 5 min. with the crowbar trying to yank the lock out