The feeling almost sneaks up on him, really. He'd felt a sort of strange disquiet he couldn't quite put his finger on, but he'd chalked it up to his restlessness. Seeing the city hadn't really helped with that in the least and it's probably just as well he'd left his lightsaber back on the Ghost with Artoo. But as the day goes on, the feeling grows and he's on his way back out of town when it finally hits him and he has to bring the speederbike to a full stop in his surprise.

Obi-Wan??!

Whipping right back around and going full speed ahead is likely a good way to have the city authorities look more closely at him than the young man who'd wandered aimlessly around the city earlier and bought a few random items from the market to make it look like he'd actually had a reason for being there.

It's quite probable he's still trying to decide the best way to get back in and cursing that he shouldn't can't just fly back in and damn the consequences when Obi-Wan comes across him.