The reason why the focus was on the first one is because that was the easiest and fastest to do (You only need local officials to sign off on it because its a temporary order and its also the simplest). 2 and 3 need the federal government to organize it, which as a large organization takes some time. 4 and 5 requires figuring out contract terms (who's paying whom, etc). These are much more complex and therefore will take more time. Oh and the tweetstorm was done on a Friday on the West Coast, so it takes some time to get the attention of decision makers on the east coast.