So I let it try and ran the car for 5 minutes and NOTHING HAPPENED.
I decided to drive it about a half mile and it started leaking again. I can't find it at all though. By then it was wet everywhere again. Just can tell it is on the right side, somewhere between the center/middle of the radiator and the airbox.
Is there a way to get it to start leaking while its idling so I can see where it is coming from while it is dry?
It sounds like you were close to leaking, before the drive. But try to add a little load while stopped.
Note that the volume of air in the expansion tank slows down the build-up of pressure in the system as the engine warms up.
First, clean again using the green can of CRC "brake clean". This stuff is safe on plastics and drys quickly. It may help to remove the air box for better access ( search for cold air box installation threads ). Use a long flat head screwdriver, with a rag wrapped over the tip with tension.
To add a little heat load while parked:
1) start engine, put on lights
2) let it idle until the fan(s) comes on (ac off)
3) while the car is running, brake hard, put it in 2dn (atx or man), and rev engine a bit ... like getting ready to jump off the line. do this a few times, while a friend watches for leaks with a bright flaslight if needed.
From my manual, the thermostat housing in that leak area has about 7-9 hose clamps for all the hoses that attach in that small area ... lots of leak potential.