100% chance that the regional corporate staff gets notice this is happening and goes on a panicked 48-hour cleanup drill to make sure the store is spotless for the incoming exec and make sure the grumpier members of staff are given the weekend off.
Reminds me when I was a bank teller - the area manager would come into our branch sometimes trying to like disguise himself...? But it was always SO obvious after about 10 seconds that it was him while he'd sit in the lobby and observe.
It was also impressive how fast word would go down the teller line that "corporate" was in the branch and everyone would sort of shape up for the hour they were around.
I think it's probable that they wouldn't.