Air compressor sale

Can you get a raincheck, even if you have to put some money down before the sale price expires?

I haven't had much luck with the local tractor supply. They haven't been here long, are a small store vs others I have been in, and are hands down THE most expensive place around here to buy when talking about buying any "same exact thing" anywhere else around.
I've bought stuff there, and the price at the register comes up higher than what's posted on the floor they won't honor the posted at the display price either. I've entered the checkout line there twice since they came to town and left what I went in for, on the counter, walked out empty handed because of this.