Iv'e just had the very thing happen to me buddy, & i was pleased to be honest, and i think you should be if it happened to you.
As you must have touched them somehow, into wanting to pray for you.
I do believe in a God, but i also believe praying is a waste of time.
Whatever anyone is praying for is already out there (or at least the potential for it is), all they have to do is go & get it etc. :-)