2013 Subaru Outback AT oil temp light

I had my oil changed at the dealership.  On our 2 hour drive home the AT Oil
temp light came on.  I called the dealership and kept getting put on hold and
finally got to a tech.  He said to quit driving as soon as possible.  We were a
few miles from the nearest town and drove there and left the car at a friend's
house.  The car was driving fine.  They had looked at the AC as it had not
been working well at an extended stop.  They did not have the part for it so
we were going to have to reschedule that fix.  Should I have the car towed to
the same Dealer or to a different dealer?