Yep, it was the three bolts holding everything together...

I put a bigger jack under the A-arm and lifted it back into position. After tightening up one bolt, the other two popped right out. Then I supported the hub with a jackstand and alternatively unthreaded the third bolt as I lowered the a-arm with the floor jack (none of this would have been necessary if I had originally removed the bolts before lowering the a-arm). Once the third bolt was cleared, the A-arm dropped and the spring released but didn't fall out.
I removed the three half-shaft bolts and removed it.
Part one completed.
The right side should be a lot easier now that I learned the hard way how to drop the a-arm.
The ultimate goal is to remove the front axle, the oil pan and finally get access to the torque converter bolts on the flexplate to disconnect the transmission from the engine. Removing the axle also gives me enough room to slide the engine forward for removal.
This sure isn't like removing a 1.3 from a Samurai...