Call the local fire department non-emergency number and ask if they can schedule a visit to inspect your fire alarms and provide recommendations on the situation. The fire department is genuinely interested in your safety, because it’s also important for their safety so they don’t have to come rescue you. If anything is a fire hazard, the professionals can explain why and explain how to fix it. But they’ll probably say “WTF” because the landlord is most likely just being a fuckface, as landlords do. Assuming the latter, ask them if you get the “WTF” in writing so you can wave it in the landlord’s face when you tell them to fuck off and die.