I wouldn't have said a dang thing about the firearms if they were legally carried... Unless of course one was in the glove box with my registration...
I also would have refused the search as no probable cause had been detected... Once you refuse they bring the dope dog and walk it around the car. Once the dog is out of your sight on the blind side the "handler" may tell his buddy who is keeping an eye on you, "the dog alerted" and then they will search... Least that is a tactic used in Polk County Florida
Brent