When he is arrested for being in a cult, she asks if he is. "Of course not," he responds. The arrest occurred after a cult shooting at the university. A curfew was imposed, which Nnamabia violated by staying out drinking.
An adverb is a word that describes a verb, or states how something is done. So, having this in mind, the adverb in this sentence is loudly. How did she call them? Loudly.