She probably wouldn't slap him. Gaping a bit, maybe, and spluttering quite a lot would be a more likely response.

Annabelle tries to ease the awkwardness as much as she can. If nothing else, navigating through the streets of Chicago on foot is likely to provide a bit of a distraction.

The ice cream parlor does seem oddly busy, especially considering that the number of people going in the door doesn't quite match up to the number of customers...