@athenalee, I got my first shot Friday in Lexington KY at the regional location at the UK football arena. It was a 45 minute drive and I went alone. My only problem was that I made a wrong turn and parked in a lot that was on the opposite side of the stadium! But the weather was clear, and no precipitation in sight so it was an enjoyable walk to the vaccination area.

The process was well organized and I felt safe because of the safe distancing and adherence to safe protocols by the staff, volunteers, and those in line. I received the Pfizer vaccine.

I was concerned about how I would feel afterwards because I wanted to visit with my son who is currently homebound and recovering from a serious injury. and - I felt fine and was able to enjoy a visit with him, and even picked up his RX for him. I developed a sore arm, much like any other vaccination response that evening. It did not interfere with sleep as I had feared. Next day (yesterday) I felt limp, nothing specific, just not 100% my normal. I treated myself to a nap. My temperature was slightly elevated later in the day. I took only 1 reg tylenol for a slight nagging headache.
This morning, I feel normal.
Be safe on the road.

@athenalee If you are really concerned about that long drive maybe you should bring a little overnight bag just in case you feel the need to stop somewhere and spend the night. I know there are many places to stay close to Lahey, I suspect there are too, along the way. The major hotel chains are supposedly doing a very good job at sanitizing rooms too. It would probably give you some peace of mind to know you had that option as a backup.

I would suggest bringing someone with you to drive if necessary but these days no one wants to be in close proximity of a car's interior, so that would be tough.

Which shot did you get at Lahey? I am thinking the hospitals, etc., are probably doing Pfizer since they would be able to have the necessary equipment to keep it cold, whereas the makeshift sites would need to have Moderna.
JK