I haven't figured out how to check the store ads anywhere - but we usually are on a mission when we go there so a sale is just a bonus.

I've visited a lot of those Frys as well - and this is definitely one of the newest/nicest ones.

Rental cars are all at the offsite rental car center - you'll get your car faster having some status, but you will still have to get on a bus and go to the center.

Incidentally, the fastest way to get to get there from the rental car center (regardless of what the rental car people tell you) is to take the frontage road north through DFW all the way to the north exit - then take that road north to 635 East. (The DFW folks don't want the rental car folks sending their patrons up the frontage roads so they lie and say they are not thru roads - they actually are.) You'll take 635 to the exit between Belt Line and MacArthur (can't remember the name of it... but someone will jump in, I'm sure) and Fry's is across the bridge next to the Home Depot. When you go to return your car, you can again take the south frontage road back to the rental car center.

Do post in Community once you figure out how long you are going to have - there are several DFW FTers who work and/or live within ten minutes of that Fry's - we could have a Fry's Do!