Auto repair service near Mayville, WI

On 6/21/12, we purchased a used Cadillac STS from Brad Hayes, the owner of Hayes Family Auto in Watertown, WI. My husband drove the car to work the next day and it overheated. He had to drive home 50 miles in 90 degree heat with the heater blowing full-blast. We took the car back to Hayes and told Brad that if it was the head gasket, to repair it correctly (i.e. drill, tap, put studs in), which Brad agreed to do. Brad supplied a loaner minivan to use while the vehicle was being repaired. My husband's suspicions were confirmed; it was a problem with the head gasket. After a month of delays, excuses, vacations, and an inexperienced mechanic in this area of repair, Brad finally agreed to take the car to our family mechanic to have it reviewed. After 30 minutes, our mechanic determined that the minimal repair was completed by Brad's mechanic and that within four months the head gasket issue would reoccur. Our mechanic's suggestion was to return the car. My husband called Brad and after explaining the situation, Brad agreed to a full refund. On 7/24/12, after over one month of delays, aggravation, empty promises, and lies, Brad left the refund check with an employee instead of apologizing in person. We viewed this as extremely cowardly and poor business. We would NOT recommend this dealership to anyone. Buyer Beware!!!