Something I've noticed is that, as far as the residents of Twin Peaks go, Ben Horne was really one of the only people who dressed as if it were the 1980s.
For the most part, the residents of TP dress like they're in some sort of timewarp with a nexus point somewhere in the 1950s. Donna, Laura, Leland, Audrey, James, Doc Hayward... All of them are consistently clad in retro/outdated fashions. Ben Horne, though, is thoroughly modern in his power attire and track suits. I wonder what the decision behind that was (and where in the world they came up with Jerry's French hillbilly pimp getup).