This only applies to drivers that decline fares in their current rate class. Standard Ubers, Uber XLs, etc. Uber Black drivers that decline UberX fares when the

This only applies to drivers that decline fares in their current rate class. Standard Ubers, Uber XLs, etc. Uber Black drivers that decline UberX fares when there are no Uber Black customers are simply marked as inactive. They can set themselves as active again and accept fares again almost immediately. If they continue to do so, then there is a wait time simply because they're not offering the service they're contracted to do and they're creating a longer wait time for Uber customers.