[V8] POP..Hiss..Smoke..Antifreeze Smell..SOS!!!

[Klein, Nathan P]

Okay, so I'm sitting in the bank drive-through for about 10 min and
notice a ton of smoke
coming of the passenger side of the car all of a sudden.

"Oh, crap," I thought.  This has happened before and it wasn't pretty.

So I get back out on the road to look for a shady spot to pull over
(it's mighty hot here today).

Pull into traffic, and I hear a POP! come from under the hood, toward
the passenger compartment, 
followed by hissing and SMOKE BELCHING out of the defrost duct, smoke
blowing on to the 
windshield from under the hood, and smoke coming from what seemed like
everywhere.

The unmistakable smell of hot antifreeze was coming out of the A/C and
heater ducts. 

Short trip.  Pull over across the street under a kind-of shaded area.
Get out of the car, and there is 
antifreeze dripping out of the car just in front of the driver's side
door, getting on to the door.

My hand got wet pulling the hood lift.

I pull back the cowling in front of the windshield, and it was like
opening a bag of microwave popcorn
too soon.

I walked the six miles back to work rather than put in coolant and
chance it.

The car is still there, and I smell like a hobo.

What in the world could this be?!

HELP!!!