~UPDATE #3~
Ok, let me tell you guys what just happened
He is still alive and I gave him sugar water. He drank about a tablespoon's worth of it out of the dropper I had (I refilled it twice at 1/2 tbsp). When I took the dropper away the second time after it was empty, he continued to drink the droplets off the screen, as expected.
But, I raised the dropper up to the screen and the wasp put his antennas up, looked at it, and moved towards it.
He now knows his food source
Am I the wasp whisperer?