State casino regulators are seeking fines against two casinos and a bowling alley in rural Nevada, alleging that employees and patrons failed to comply with requirements including a mandate for people to wear masks or face coverings to prevent the spread of the coronavirus. Records showed that complaints were filed since last Friday against C.O.D. Casino in Minden and the Hotel Nevada & Gambling Hall in Ely. A third complaint filed Tuesday named Bowl Incline on the Lake Tahoe shoreline.