If all else fails you can usually get into the RV Park at The Pima County Fairgrounds. There is a organized park up front and many more sites scattered around the fair grounds. It's across the freeway from Cactus Country.
2003 Ram CTD QC LB 4x2 MT, LuK 13", 4:10LS, GDP Fuel Boss, SmartyJr#2, Bilsteins, Lil'Rocker, Prodigy, Tireminder, Garmin, SoundflySD.
2012 COUGAR 280BHSWE, GY Endurance, PI EMS, Wave3, Glow Steps, EU2000i on propane, EasyStart 364, Wally-Playmaker