"are you at the hotel"

Faulkner is probably thinking of what was then the Colonial Hotel. Built in 1870 by William Thompson on the north side of Courthouse Square, it was the first hotel to be erected after the only previously extant example, the Oxford Inn, was demolished during the war. It has served multiple purposes over its history and at one point housed the First National Bank (see note at page 78). It is now the home of the Tollison Law Firm.