idk but looks like to essentially how most businesses usually have a google maps embed on the website that will immediately pull up directions from your current location to where ever the business is would be my guess 
pic.twitter.com/WTLwXSekec
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
This is an interesting new thing from Apple. I wonder what the motivation is.https://twitter.com/vickimurley/status/1003796076304871424 …
idk but looks like to essentially how most businesses usually have a google maps embed on the website that will immediately pull up directions from your current location to where ever the business is would be my guess 
pic.twitter.com/WTLwXSekec
I get that but why is that something Apple would be interested in supporting. Only thing I can think of is increasing the user base of Apple maps and somehow improve them as a result.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.