What should I say calling this place for a job?

So this new place is opening right down the road from me but it's not open yet... it has a number on a banner outside though.. Should I call and ask if they're hiring? Or is that just stupid? and what should I say?
Thank you!!

first of all do you know what kind of place it is,and if so do you like it or would you be interested in working there call them asap don't waist time,and no it is not stupid at all it never hurts to call and ask if there hiring,hurry!!!!!!!