Re: Roadster Top Problems
First, never put the top down wet as it could cause mildew or worse. Let it thoroughly dry after washing or after rain/dew.
Secondly, if you let off the power button the top can be stopped while 1/2 up/down so you can clean in the "boot" area or whatever it's called. It does get dusty in there. Just be careful, there's a lot of sharp edges.
Last. I keep my top down for days, sometimes weeks, at a time. It's garaged with a car cover. It does get slight wrinkles as you described but they seem to relax when the car sits in the sun and the top heats up. Since I bought a convertible to enjoy a convertible, I rarely drive it top up and if the weather is that bad, I take the winter beater.