This is one of those rare examples of explicit (vs casual) sexism. I absolutely can't imagine thinking "I need to make a label that says.."https://twitter.com/starsandrobots/status/888194707578273794 …
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
I noticed the label only after another woman and I ended up having a pretty great conversation in this car. 
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.