(b) If a landlord has informed the tenant that the tenant is responsible for changing the locks, fails to change the locks, or fails to permit a tenant to change the locks within the timeframe prescribed under subsection (a) of this section, the tenant may proceed to change the locks. If a tenant changes the locks, the tenant shall ensure that the locks are changed in a workmanlike manner, utilizing locks of similar or improved quality as compared to the original locks. The landlord may replace a lock installed by or at the behest of a tenant if the locks installed were not of similar or improved quality or were not installed properly. If a tenant changes the locks to his or her dwelling unit under this subsection, the tenant shall provide a key to the new locks to the landlord not later than two business days after the date on which the locks were changed, except when good cause prevents the tenant from providing a key to the landlord within the prescribed time period.