From the city's rules on short term lodging in Post #201, it says:
Rule 2-C-vi: 'To determine maximum number of vehicles allowed per rental, driveway capacity shall be confirmed. On-street parking shall not be allowed.'
Ok ..... so when an annoyed neighbor phones Laconia-911 and complains on the rental, the police officer who arrives at the scene of the rental will immediately have an easy count on the parked cars without needing to enter the rental .... and the police will probably have list showing each rental's car capacity, plus the obvious no on-street parking.
Reading the rules, it seems like the first offense for too many parked cars over listed capacity gets a warning, while a second offense carries a $275/day civil fine for the rental
owner.