Why did code enforcement issue you a citation?  

Very hard to say this needs to be done since there is no standard or code to enforce.

Quote from @Michael Gonzales: Cleveland Buyer default after extension — enforce EMD or keep waiting?

It’s very much a gray area—not expressly permitted under most zoning codes, yet rarely enforced unless a complaint is made.

The federal guidelines, and they are only guidelines, not rules or laws, are 2 heartbeats per bedroom.But, you are in a BLUE state and tenants can walk all over landlords there so who knows what laws really apply and how much it will cost you to have those laws enforced.

Enforcement / penaltiesNon‐compliance can lead to permit revocation and bans (e.g., if two violations occur the STR operations can be suspended for up to one year). 

I called code enforcement for the county to ask about whether the road that ran in front of the properties was paved or dirt.

Code enforcement officers walked my 5 bedroom 3 bath home with me and told me my tenants have 90 days to vacate.

If you have a contractual agreement with the lender that covers this scenario, you can try to enforce any violations of it with a suit, but good luck with that.

They are generally reserved for commercial transactions and are limited to certain states where their legality is enforced.