He had to walk that back, and in fact did meet with them a few days later.
I thought the comment, in response to someone who called in and ask him what he would do if a federal agent came to his door to take his guns, was "I'd go for the head shot, they usually wear body armor"
But I may be thinking of a different Liddy comment (he was known to make some off the wall ones)...
Yes, I remember that one too!
But he definitely said "encased in Kevlar." Just before a commercial break.
I remember that specific reference made by Liddy. That did create a little firestorm for a few days as I recall.