The good news is: if you're getting subpoenaed to testify before a grand jury, you're probably not the subject of the investigation. The time to worry is when you're only even finding out there was a grand jury proceedings when you get handed an indictment.

But for real, don't be going around accessing threat actor infrastructure from your home IP, unless you're in direct contact with all the relevant authorities. None of them talk to each other, they have no idea who you are, they have no idea what you're doing, or usually any idea what they're doing either. 

All they see is an IP logging in to criminal infrastructure, and whether or not they mistake you for a threat actor, they're still going to chase you down as a lead. There isn't really a law enforcement policy for "this person might be a good guy, let's ask them nicely to share", they're just gonna blow your door off its hinges and take your devices.

https://techcrunch.com/2023/09/27/sam-curry-chilling-effect-phone-search-airport/