Got a call this morning, auto voice telling me the IRS is suing me and instructing me to call back to the same number. It's a scam: https://www.irs.gov/uac/Newsroom/IRS-Warns-of-Pervasive-Telephone-Scam
Sounds like the scammers really get into it, even impersonating police. I suggest we report it on the link the IRS provided.