Hi all,
We had it jumped and replaced the battery. Battery appeared to be original, so it was a good replacement anyway.
Funny thing is, on my way to the shop with the new battery, I plugged my phone into the cigarette lighter charger for a quick boost, and the car fried my phone. Completely killed it. Not even the mechanic knew why this happened. So, replacing my $500 phone was a nice touch and tab to add to the costs of owning this car.
The need for jumping hasn't happened again (yet). However, I'm still having electrical issues such as flickering lights (internal and external), heat output ebbing and flowing with the idle of the car. I plan on replacing the alternator this weekend, per the advice of the mechanic.