I would say that the ice cream truck was “about to move” rather than “close.”
I like the concept- setting the rapture on a typical summer day. I think the final sentence could be stronger with less focus on the popsicle and more on John.

Ah, right as I finished I looked at the challenge title. Nicely set up, kind of paralleling the state of the world, that some notice subtle signs while others are oblivious and more concerned with ice cream.

Mmm, I could go for some ice cream right about now.

agree with THX about the people paralleling the state of the world, however, I think the popsicle line is a movie misdirection, the camera zooms in on the reach and fire lights up the background with a BOOM.