Someone would put up a “No Mormons Allowed” sign.
snicker...OK you made me laugh but you do know you’re really asking for it now. Gird your loins. ;-)
They wouldn't want to pray to the God of the Bible anyway.
FLDS/LDS Book of Abraham Chapter 4 Verse 1
" And then the Lord said: Let us go down. And they went down at the beginning, and they, that is the Gods, organized and formed the heavens and the earth."