I too had a FTTRB problem. They chewed a hole into my attic and got very comfortable before I noticed them.
I tried traps, baits, deterrents and a couple of companies that specialized in critter remediation. Nothing worked until I went to Bass Pro and bought a nice Ruger pellet rifle. It took a few weeks but problem solved. It’s against the law to discharge a fire arm here also and Shirley was very worried I'd get in trouble but I was out of options. It was either kill em or sign the deed over.
And no, I didn’t eat them. I don’t eat rodents.