3. You can take out the back seat and climb into the trunk and turn the lock from the inside or remove the two bolts holding the latch to the trunk. From there you can purchase a new lock and key.
One one car I needed to get into I pulled the seat, taped all the 3/8 drive extensions I could find together, and reached straight back through the X braces and unscrewed the trunk latch bolts. "Pretty soon" the latch will fall off
