Riverton Music owner Kevin Rindlisbacher now has an electronic sign advertising his Sandy store attached to a pole tall enough so drivers on Interstate 15 can see it as they pass at about 9500 South. Thanks to a bureaucratic system, he says, it took a year and a half and thousands of dollars in legal fees to get it. âIn October 2015, I contacted the Sandy planning department about placing a pole sign in front of my Riverton Music location at 9491 S.