I've tried numerous cleaners and polishers to some pretty heavy boot burns. Oven cleaner didn't work so well, acetone nothing, chrome polish nothing. Rub long enough and it dulls the chrome. Found another site that mentioned a Mr. Clean Magic Eraser and Sprite-Zero? to clean a burnt on plastic bag. I'm guessing sprite zero cause it has citric acid? Said they rubbed on it for a couple hours. I'd rather be riding! Still not the secret home remedy. Many people as well as the dealer suggested the Road Rub, haven't tried it but sound like it might work well also.
As far as the Magic Eraser, I used this with some carburetor cleaner, and the boot marks were off in a matter of 5 minutes or less. After everything I've tried, I'd recommend this one. About $1 a piece for the magic eraser, and always a can or two of carb cleaner around. Highly recommended!

Wish I could find a nice chrome boot guard for the smaller aileron swept footboards for passenger and driver. Most all I've seen only fit the standard footboards.
FYI, hope this helps!