There are a lot of videos leaked from Chinese citizens of the barricades. Here are a few:
https://twitter.com/IsChinar/status/1225180216223588352
https://t.co/3OcIm5JZsk https://t.co/vHtEAQhvcA
https://twitter.com/SandepsK/status/1223688678427414528
https://twitter.com/kenji_tokyo2007/status/1222531370041217024
https://summit.news/2020/02/05/china-police-lock-potential-coronavirus-victim-in-her-own-home/