I assume the place is where Rosie's character works along with Dempsey's character that was probably reassigned as her boss after Fox's departure from the film. As for the 'Bee-ish car, I have no idea but in the second film he was getting a bit sick of the Transformers drama so might make sense he wanted his own, non-Transforming car while Bumbleebee worked as part of NEST. Juise also put together a slick stop motion video (below) from his photos that show a bit of the scene that they were filming. More pictures can be found here. Thanks to Mike G. for the heads-up.
Update:TFW2005 has more pictures via Flickr. Also click here for another video of a scene being filmed.