She was going home alone because Ceasar went home yesterday to be with his family, and Benjamin split his time between her and Marcel, who was still in recovery. Today was his day with Marcel.
As much as staying close to Zion's car was necessary, the coward would likely give up his chase of her if he noticed he was being followed, and I didn't want to give him that grace.
Many questions lingered in my mind, though: why was he following her?
With everything happening in his world, Imela was the last person he needed to worry about. Could they have maintained a form of friendship even after their relationship ended? If so, I would have seen his smug face at the Plane Enterprise, and Imela would have slipped and called his name once in the last few months, but there was no such thing.
Perhaps he needed her help. The Garcia Group specialised in saving sinking companies, and this was his way of asking for help.