Was Ben going to try dressing up and holding form for an extended period time time? Also yes.
So he'd manifested, then gotten into an Elvis costume and then... well, he'd suddenly become Elvis. Not that Ben was aware of that at all. In fact, Elvis was a bit confused. In his bedazzled white outfit and luscious black hair, he was currently strolling the streets. There was so many new things! Have you seen the cars here?
Finally he moved to touch someone nearby. He spoke in his usual Elvis accent. "Excuse me, but - do you happen to know where we are?"