Lopez can't just put her bracelet back on after she arrested the thieves who stole it because it's considered evidence. She wouldn't be able to claim it until after the trial.
Nolan cannot be assigned to a 'station 4hrs away, on the border'. on the worst of days there is no place in LA that is 4hrs away from any other place. and on the border of what? Mexico? that could be 4hrs away, but LAPD has no presence there. This series has consistently played fast and loose with settings that would not fall under LAPD, but this is ridiculous. the vultures are circling.
When Sergeant Grey surprises his wife with riding lessons, two horses are seen from the side view, but there is clearly only one horse in the view from the Greys' perspective.