Anya had limited time with a dead body in the bathroom. Alvin's name was no less of a distraction for her. She might believe in Alvin, who is her husband but as an officer who came out on a mission, Alvin's actions are suspicious as he meticulously got her GPS tracker.
Any sane-minded criminal would stop her or change the plan. Whereas she was in the middle of a trade between Miles Johnson and a foreign man. Thus Alvin won't be on the suspect list.
However, Anya regretted believing in Alvin to sit in Narnia. She should have known Alvin wasn't the kind to sit knowing she was stepping into danger.
Why does she turn into a Goofball around her husband?
She whispered to Dot, [Connect him to the call.]
Each second after it was a timed bomb for her. If anybody enters the bedroom and finds out the burly man wasn't there, they will check the restroom and her disguise will be blown. It will put Jackson in more danger.