For an Abandoned Museum, the place looks a bit too clean at the moment. I would LOVE if some adjustments were made to really make it look like a Museum that got abandoned years ago. I don't expect a whole REDESIGN, just some touchups to sell that it's abandoned.
Maybe some dust particles and slight texture adjustments could help. Perhaps some of the lights don't even work anymore. The rest could be turned off due to Ted hiding from the police. It doesn't make too much sense for him to have all the lights on, it would raise way too much suspicion. Instead, have some spotlights be powered by Generators. [Super House Man suggested that part, but his original suggestion for it sadly got deleted]