If taking down Sir, without the notice to people having one access or the other in the given wallet, will they not be unable to access their coins or access? Will it not be better to preinform those having access in the given wallet before trying to put it or pull it down to avoid global murmuring and FBI intrusion and penalties?
Now here is where the risk is, there is never a guarantee that when a centralized exchange is going to be taken down that there is going to be any form of information about it, yeah in most cases if an exchange wants to end its service with any country or region they warn it’s citizens fore hand and give them time to withdraw their funds but that is not going to be the case when there is direct seizure of the exchange or worst come to worse if it is attack and the exchange gets hacked you cannot be withdraw as their no prior warning to situations like this. So just as OP stated take your funds away from then and that’s the only way to keep your funds safe