How can you urgently get from Da Nang to Lao Bao for a visa run if your Vietnam stay expires today?

For a same-day expiry, the most realistic option mentioned was to urgently hire a private car with driver from Da Nang to Lao Bao.

If you are leaving on the actual expiry date, there is almost no time to depend on standard transport; the discussion implies you need to go immediately or you will overstay.

For a self-organized visa run, travelers look at sleeper buses from Da Nang Central Bus Station, but this discussion did not provide a confirmed working bus option to Lao Bao.