Don't do it!!! Unless you enjoy paying 3 times the amount you were quoted.
I used a coupon on the back of a Fry's Grocery Store receipt that read the following: "$1.50 each - Shirts with $10 minimum drycleaning order." When I went to pay for the shirts (once they were cleaned) the worker said the total for 9 dress shirts was roughly $36. I showed her the coupon. Her only reply was it doesn't count for women's shirts. I told her that's not what was quoted when I dropped them off. She didn't care in the least.
I asked for the phone number of the manager/owner. The next day I called him and had to leave a message with a worker. He didn't call back. I called him two days later and left another message with a worker. I followed this routine for the next two weeks until it was apparent the manager/owner was not going to call back and address the issue.
Horrible customer service, deceiving coupons, and an unresponsive and dodging manager/owner... adds up to a whole bunch of nothing.