Rodeo Ford

Now I get a free oil change. Have the work done, first time driving my vehicle on the highway, low air pressure light. Never happened before and they rotated my tires. I called and was told, don't worry air pressure will go up with this heat. Not a good answer going down the highway at 65mph with kids in car. Told not to worry and stop back when I was in town. Pulled over and all tires with 25psi. Door says 35. I put air in and light went out. Now fast forward almost a month, 2 wks with rental on vacation. My daughter spots oil on garage floor. I lift hood and oil cap was off. Hood had not been up since "free" oil change. I hadn't noticed floor since I'm the only driver and work till night at local emergency room. I call again and said coming in. Came in waited about hour. Given print out that said routine oil maintenance. I said, no this should indicate the tech left the cap off. My engine was covered as was the felt hood cover. Ms. Kimes at Rodeo states, "well it was on when we lifted the hood." At that point my own gasket was ready to blow. How stupid was she accusing me of being. I would drive with it off spraying oil. I then asked a second time to see a maintenance manager. I met with Derrin S at Rodeo. He tried to placate me and said the tech was fired after my service was done. He changed the print out to reflect the reason for my visit. They washed my engine off and replaced the lost oil. I told him about the air pressure call and answer. He agreed that driving like that could have been dangerous. Thank God I had a father who taught me the basics. So I go home, not happy with outcome completely. The car felt less powerful and the fuel mileage indicator I leave up was showing 13mpg and when I stopped it dropped to 9. I called left VMM for Darrin and spoke with Rafeal. I had pulled my air filter and it looked like it was smeared with margerine, bright yellow. This was two days ago. No call back though Derrin promised to be available. I would have thought since the air intake is at the front fender where all this oil sprayed they would have checked and replaced my air filter. This was my first Ford and I'm not impressed. I've wrote to Ford Corporate and heard nothing to date, nor have I received a call from the Service Manager. The worst customer service ever! Stay away!