If I were locked in there overnight, I would have a big to-do list. First of all I'd invite some of my best friends to stay there with me for both company and so that we could all play games. I'd want to try on all the clothes there and have a fashion show with the ugliest combination we could create! We could also try all the fun beauty products from testing nail polish colors to different crimpers, curlers, and straighteners. I'd also have a bunch of fun reading, coloring the coloring books, riding the bikes, and playing all the board games, plus we'd have access to all the music Target sells so we could have a really fun dance party or something!
Of course we'd all have to take advantage of all the food at Target too! Since our Target has a Starbucks we'd be able to make frappucinos and eat scones from there, or have Icees and soft pretzels from the snack bar. AND ICE CREAM! I think it'd be super fun to go to the ice cream isle in the grocery section and taste a little bit from each flavor. Not to mention there's pretty much every snack food available there.
Also (as stupid as it sounds), I'd make sure we all had time to play hide and seek or sardines in the dark just because that would be so super fun in such a big store!