I ride RTs privately as well as a blood-runner volunteer and have to say BMWs need more TLC than for example Pan Europeans; build quality is "temperamental at best" I'd say, some bits like plastics and exhaust silencer being impressive, others (engine-casing, headers, wheels, footrest-plates, forks, nuts & bolts) outright disappointing. Still, rinsing the bike with a garden-hose with a brush attached after wet and salty rides goes a long way and only takes minutes (esp with the panniers coming off so easily). ACF 50 works well too, although the trouble with that is that if the bike does loads of miles and needs to look clean and fresh (and bloodbikes need to look like that) then you still need to wash the bike frequently and the ACF 50 will wash off and will need re-applying (even though it's much resilient than other sprays).
BTW - I still prefer the RT over the Pan, even though I won't deny that the Pan is in many ways superior (including reliability). The Beemer is just "the right tool" for those long busy days in the seat and it's more fun as a bonus - I don't mind the extra hosing down