I think there are only 24 Starbucks locations in Brazil and we know what time he was there. He already left too much information for even a crappy detective. I guess getting the video surveillance from Starbucks would be a problem.
Assuming that he did not lie about Starbucks or Brazil or everything.
Of course, but I don't think so. Why would he go though any of this if his initial intention was to run off with the dough. I think he started off being genuine and that's when he mentioned where he was and what he does for a living. It doesn't matter. It's not like anyone is going to investigate.