I'm not sure if this is a great excuse to try to get out of a speeding ticket, but it's probably an honest one.

A woman was pulled over on Interstate 35 in Mason City on Monday for doing 137 mph in a Ferrari 488 Spider she'd rented. And her excuse? She didn't realize she was doing 137, she thought she was only doing 100.

Which, of course, would still be extremely illegal. She's looking at a fine of $335, which seems kind of low all things considered.