A flat tire is one possibility
From your description it sounds as if it MAY be your tires. When sitting for a long period of time (overnight) some types of tires develop a 'flat' spot which causes a shaking sensation when you first start driving the car. As the tires warm up from driving the flat spot goes away and the shaking disappears. Just a thought. Good luck. I have a Ford Focus myself and this happened to my car I replaced My Spark Plugs and Wires and it never came back. Try that. If that doesn't work it could be something more serious. You may need a full tune up, or you may be suffering the effects of a factory defect in the engine mounts. My son's 2000 Focus had the same problem; a vibration when the car was cold that would go away after about 20 minutes of driving. The dealer replaced the front motor mount and the vibration was eliminated.
34 miles driving at 70mph requires 29.1 minutes.
30 minutes
I was traveling towing a double wheeled trailer once and one of the tyres went flat as I was driving. couldn't get the wheel of, so i kept on driving at about 110 kmph after about 5 minutes the whole tyre flew burning of the rim.
MapQuest estimates the driving time as 3 hours and 28 minutes.
change the power steering fluid
32
burning up
10 minutes on the train, 7 minutes driving.
The shortest driving time is 63 minutes.
42 minutes at 60 mph
If the car is being driven with the "city" setting selected and suddenly the steering goes heavy and a steering wheel symbol appears in the instrument cluster then the electric power steering has failed. If you stop and the ignition is switched off and then back on again the steering should recover until the next failure which may be minutes, hours or days apart. The best solution is to deselect "city" driving and drive on normal setting which may never fail but if it does then the answer is to get a new steering column with integrated power steering fitted but it is costly £700 to £800.