Many thanks to @kateallennn and to @DavidRobichaux who tweeted that they saw Keanu Reeves at the airport and shared their photos with him on instagram. Also, thanks to @suzmarques who also tweted that she had just landed in New Orleans and saw Keanu at the airport. All of the tweets were posted at roughly the same time so the photos were most likely taken at the airport in New Orleans. Photos are here and here.
Many thanks to abbymanuel who shared the photo that she and her friend took with Keanu in New Orleans on webstagram and to @keanulatino for tweeting its counterpart on instgram. The photo was posted 16 hr. ago and it is not clear when it was taken. It is here.