my Sony Ericsson K750 survived the same but without screen problems.
Waiting for a story how a stainless steel fork survived dropping on a hard floor.

Strange.

It probably fell into some snow. Then it rained for a while, soaking the snow. Then it got cold and it all froze to ice. Because of this, there may have been very little moist inside the phone.

I had something like that happen to my old Nokia and, well... global warming.