I feel your pain. Same thing happened to me last year, but I was on the highway. Fortunately it happened right before my exit and I was able to pull off alongside the ramp. The engine died and steam was pouring out. Anti-freeze was blown all over the engine bay. I was real lucky that it didn't die on the highway - could have been road kill real easy with all the semis barreling along at 80mph. There's no shoulder along that stretch to pull over on.
Anyway, a new radiator, a rebuilt head and 4 weeks later it was as good as new

. Hope your damage is a lot less serious than mine was!