i recommend reading this and doing as it says just in case,, but the staff can't do anything for you, unfortunately
"it wouldn’t do any harm to call your local police department’s non-emergency line, ask to speak with an officer or detective and explain to them that someone on the Internet made statements/threats that they were going to spoof your ID (impersonate you) and place a false/malicious call to your local 911 that would likely cause a high-tension, high-anxiety police response to your home.
The officer on the phone may want more information, provide them what you can (without guessing or speculation) and they will most likely tell you that unless or until they have evidence of a crime, there is very little that they can do proactively. Which is fine and understandable. Make it clear to them that you understand, but you also wanted to make a logged and official contact with them so if that person on the Internet does follow through with their threat, that their agency has a record of you contacting them first and making them aware.
It’s possible, even likely, but it would be up to the person you spoke to and the policies of their department, but it could result in your address being “pre-flagged” so that a 911 call would show a note to the operator that you were threatened with a SWAT-spoof. If someone were to make such a call, the agency would still be obligated to respond, but they would be pre-warned that it COULD be a hoax, and such a flag could help the call-center and law enforcement to track the call or get information that might help to catch the person who is falsely and maliciously reporting a crime in a way that puts civilians and officers into unnecessary danger."
If the police in your area have computer aided dispatch (CAD), you have the option to go to/call the police and ask that notes be added to your address, regarding the threat - and provide alternate contact numbers for you.