Ditto! For about 6 months, or more, I have the top up and the A/C ON. Have had a sunburned head so hats are sometimes necessary, LOL! I have used Scotch Guard on the (clean) top (sparingly, according to the directions), with no negative results.
Rain has been rather rare here for a number of years and now that she is a "garage queen" she will stay dry most of the time.