Mistake in a Store Flyer?

I noticed a price mistake in a local store flyer.. It was way cheaper than what it is suppose to be. When going to the store they say it was a printing mistake and won't honor the price.. I say I didn't waste my time coming here for nothing and its false advertising.. Intenional or not.

Who is right?

The store is right. Mistakes happen...and "false advertising" is a myth.