sure you can ask
You can ask anything you want. You might not get them to comply.
Go with a friend and play like jolly fellows, then get the pit critter involved and argue with your friend..have one take the side that some cards are missing and the other the side that they are not....
I would bet you that the pit critter WILL NOT check that deck, but offer to bring in a new deck and that deck will have all the cards there...so you really WILL NOT have an answer anyhow!
Oh No, Mr. Lee I will take your gold again!