A set of 11 videos from the Bethlehem Steel works set have been posted by YouTube user RodrigoNJ, in an obscure vertical format they show helicopters flying in to the location, filming, Michael Bay and most importantly, the two halves of the ice Cream truck split up, driving and spinning around independently!
This was previously reported on via the leaked Call Sheet, but never confirmed:
The scene breakdowns also reveal that the Icecream truck is a new robot — splitting in two (”twins”) around children whilst leaving them treats (comedy is back, excellent!).