Not from the US, but for example anti-lockdown campaigners in Canada had their bank accounts frozen IIRC

Wow, I think disagreeing with a lockdown in the face of a pandemic is pretty fucking stupid but even so, freezing people's bank accounts is even more messed up and should not happen over any sort of non-violent political actions in a modern democracy. Seems unblocked now, but still that seems like a bananas reaction.

For reference as I hadn't heard about it before:

> Isabelle Jacques, assistant deputy minister of finance, told a committee of MPs that up to 210 bank accounts holding about $7.8 million were frozen under the financial measures contained in the Emergencies Act. - https://www.cbc.ca/news/politics/emergency-bank-measures-fin...