If I stumbled across a PAM Outlet and had one of my reps on, the only one I would hesitate to wear inside is my Bronzo. The gen version is too rare to avoid a lot of attention. I also have reps of the 188, 196, 029, 371, 389 and would just wear it in if I didn't know ahead of time that I'd be stopping in. If I planned a visit, I would probably wear something else. Rep or gen, but a non-Pam.
If challenged in the store, I would absolutely admit it as a rep. If they didn't like it, tough shit for them! Ask me to leave, try to sell me a gen, whatever. I'm giving serious consideration to a gen 389, but the rep is so darn good, I can't bring myself to spend 5-figures for the gen quite yet. The 389 has definitely become my favorite piece!