Peaches Records and Tapes sells vintage music on vinyl and cassette tape as well as musical instruments. Charlie wants to start a band with DeeMac, and Dennis. They pool their money together and go to Peaches to buy a full set of musical instruments. Seeing a good deal, they purchase their instruments for $4,000. As they leave, they see a sign above the door that sales in bold"ALL SALES FINAL! NO RETURNS OR EXCHANGES ! They set up at Paddy's Pub to play their first concert. None of the instruments work correctlyTwo of the guitars had missing strings, which they did not notice at the time of purchase. The amplifier did not work at all. Upset, the gang returned the next day to Peaches for a full refund and were informed of the policy, ALL SALES FINAL! NO RETURNS OR EXCHANGES!" as shown above the door as you leave the store . Can Peaches Records and Tapes impose a post-sale disclaimer on customers like this? Explain.