I guess, you should be able to tell us 'cause you live in vicinity. If I would be in Shenzhen, I'd go to Luohu and ask cops about it. Some they speak English ...

Once, I was working in Xinjiang, I asked cop on the road for his whistle. No English or Chinese was used. Just 'show&tell' technique ... he he.

He wouldn't give it to me, but he took me to the convenience store, where I could buy one.

I looked over the search, and there's nothing there on Q "Is HK closed for inbound traffic?".

I got this post, which claims HK closed the borders ... 'cause of Chinese virus, he he 

https://hksar.org/hong-kong-is-closing-its-borders-to-keep-coronavirus-out

Considering numbers of infected around the world are in several thousands, this weblink came out in January 2020. There are great titles on the bottom of the text.