Salem makes it to his car just fine, no issues or trouble whatsoever. Once he reaches his Camaro, he sits in his drivers seat and stares at Atlas' knife for a while. He's still shaking, and he doesn't know what to do with it. Should he keep it? He wants to. He wants to have this little piece of Atlas, it feels special because it's something that was given to him since they broke up.
Salem hates it when Atlas gives him hope.
Salem puts the knife in his center console, choosing to forget about it, and drives home. He spends the rest of the weekend alone and miserable, though he does go back to taking his medicine.