Rules Question

Here's a strange one that happened today:

I hit my ball onto the green and then the heavens opened so we took some shelter under a tree (never a good idea!) and waited for one of our group to run to his car to get his waterproofs.

Now, when my ball initially hit the green it was fine and dry, but by the time we eventually came back out from the tree, it was sat in the middle of a puddle!

So, do I get relief for standing water or not?