Oh, yeah
I had to confiscate the firing mallet or we'd of really made the front page
Seriously, the FREEDOM started the procession with a cannon shot (and noticing them preparing for same, we were ... ah.... inspired

). I think most folks just thought it was an echo from their gun

Well, not the couple on the Catalina with eyes as big as saucers

Then after the ceremony as FREEDOM headed south, we gained on them (yours truly carefully jockeyed into position for a clean shot). Their crew and guests were on the rail smiling and waving. I pointed at the cannon and pantomimed / yelled that we were going to fire.
Up until the moment the cannon went off, I don't think they got it.
Our radio was dead at that point, but I'll reach out to the captain to discuss future engagements.
FWIW, there was someone on shore firing at both of us!