Is there a bar or liquor store near walk distance

There is an outdoor bar right in center courtyard. It's beautiful with lit fires on cool evenings.

Yes

The shell gas station down the street sells beer.. not sure if they sell liquor.

There's a bar in the hotel. There's also plenty of restaurants within walking distance nearby with bars. Applebee's, Cattle Baron, Ojos Locos. Also a 7/11 close by