Just read this:
"Still other books might state “Las Vegas rules apply”. If you must deal with an online sports book that has no listed rule or follows Las Vegas rules (which is action after one serve), you might want to confirm via email how they’ll grade such a result. You might be surprised how many sportsbooks are unaware of Las Vegas rules."
If my book says Las Vegas rules apply, then that would mean my bet should be considered a win (because it's action after one serve in Vegas). We'll see what happens when they open up in the morning.