I would look into shipping your bike. I think you'll need to register your residence in Kunming to purchase one. Then the process of paying taxes and getting plates can take a few days.

Ask at a local motorcycle shop in Beijing if they can help you ship your bike.

You could work remotely for a company in another country, but you're not supposed to work for any Chinese company while you are here without a work permit or green card.

@Duke, Isn't Vietnam still banning entry by foreigners anyway? If it was me, I would drag myself down to the entry-exit bureau and plead my case (perhaps I foolishly and mistakenly thought the 30 day extensions were automatic as long as the epidemic situation was still ongoing?).

IF YOU GET SENT TO HOSPITAL UPON ARRIVING IN KUNMING FROM ABROAD.... make sure you get all of the records from your hospital stay, espcially a stamped statement that you have been tested x times for coronaviurs and found negative and have been free of fever for x days and when you get to your qurantine hotel, you need to stop at the first checkpoint and show the paperwork to the authorities there and make sure they agree to get all of the fever-free days of your hosptial stay deducted in advance from your hotel stay. Once you pass this first checkpoint and go to the hotel check-in, you will be dealing mostly with hotel staff and it will be much more difficult to adjust the duration of your hotel quarantine.

^Yes, I have had four swab tests so far. They only told me the results of two, which were both negative. I'm assuming if either of the other two had come back positive, I would have heard about it.