How do you deal with someone trying to call you "Stolen Valor"?

Show then your VA card and then bus them right in the mouth for bothering you, if you can't do that give them the "stink eye" and if you are little, skinny, or timid? don't park there.

how about busting them in the mouth or if you don't want to do that. ask them for their military service and tell them to prove it!

Bitch slap them til they get some manners.

ps: bring lunch

Well , I wear a ball cap that says US Army, and in smaller letters it says WWII Vet. Now I was born in the 60's and my grandfather's and one grandmother were WWII vets as well. Please note the US gov is the entity that considers me a WWII- Vet. -figure that out, LOL ;). Note: I never ask for a vet discount or even bring it up anyone(sometimes I do use a vet parking space though). Some people will ask where/when I served , etc, and I tell them.That is about it , Unless they want to talk shop if they are fellow vet themselves. I don't mind listening to what others did or what service they werein doing whatever.
I have had one person call me out on the WWII wording in about 3-4 years, and I did not bother to explain. He said a couple cuss words and walked off in theother direction.
Now if somebody(s) actually got in my face, I would explain to them why and how , I wear that hat with honor and I am"authorized" to do so. It is an interesting story and it is the truth.
If somebody stayed in my face or knocked the hat (off my head)/assualted me or menaced me, about it or just being a vet they would quickly find out , they messed with wrong vet , and I would not care who the hell they were, - GWOT war-hero ,retired E9 , O-9 , or just some new nut punk vet or fake-vet. We're all the same and same rank after it is over with(PFC)-LOL. As to others claiming whatever or even stolen valor fakers , I simple don't care. I am not Don Shipley, I can listen to BS for a while till I walk off. Some of it is funny to me .

YOU EITHER MAKING IT OR TAKING IT BOY! Shit, I would leg the turds park up front. Unless you in a hurry for them Icy POPs. easier not to be identified as a douche.
Semper FI

Carry a copy of your DD FM 214 and politely tell them to kiss your butt..

You have all your credentials with you and they wont listen don't give them the time of day, you know, your credentials say, and you have the proof, that makes them not worth your time just remember who you are and that you are still a soldier weather your still serving or not so you still should be a professional no matter how they treat you.

I tell them to fuck off, and show them my VA card...

I think anyone who tries to pretend something that he or she is not is just a phoney with no respect for themselves.

Join the American Legion and put a Legion sticker on your car. And tell them to pound sand. Or get a Veteran license plate. I do't think a Vet has to prove anything. He or she already did by serving. Let the Karens wag on.