Difficult to shift (automatic transmission)
I recently went on a long road trip (2,000+ miles round trip). At some point on the returning leg it became very difficult to shift into park. Once I got it into park I sat there and just rapidly shifted around for a while on the advice of my friend. It became easier to shift around, but still felt weird -- harder than usual, and sort of dry? This problem only happened on the trip and since then shifting has felt normal.
What happened, and do I need to get something fixed? I'm planning to take another trip of similar distance soon and I don't know if I should get a special check-up for my Focus. And what's the best way to deal with this if it happens again?