A Antiquing Conundrum

There is an antique shop along Interstate 75 in Reddick, Florida called "A Antique Shop."

It confuses me.

Is it "A Antique Shop" as in a man or a house? And is prounounced "ey" or "uh" Antique Shop?

Or, is it "A" Antique Shop as opposed to "B" Antique Shop?

Shouldn't it be "An Antique Shop?"

I can just hear them answering the phone now:

"Good afternoon, Uh Antique Shop. How may I help you?"

Uh?

I mean, "Good afternoon, Ey Antique Shop. How may I help you?"

Personally, I think I might have just gone with "A Shop For Antiques" to avoid any confusion.

But then, there are going to be those blasted people who are going to spell it S-h-o-p-p-e.