u/ilikemycrustcrispy

So I’m looking to buy these tires for my 2009 mdx, I’ve had them in my cart for a couple days now and at the time when I placed them in my cart they were at the price shown in the picture. Today they’re going for $177. Is this a glitch or what? My concern is if I purchase them online that when I get to the store they’re going to charge me for the current price. Anyone ever experience this before?