I just got locked out of Twitter for including @FBI

Super strange things, but my only clue is I replied to someone’s tweet and in the reply I included @FBI.

@Anti_USA_Dems @NBCNews I think you meant to at @FBI Iā€™m pulling them into the loop for you.

This is the tweet that started the lockout

IMMEDIATELY after hitting send, my account was locked. Here is what twitter shows me:

After I clicked start, it showed me my phone number. I clicked submit for them to send me an SMS verification code, and immediately is gives me this error. Something is weird.