So did the automatic recalibration completely finish? With my HW3.0 upgrade I saw a green (blue?) arc complete a full circle and then my autopilot functions returned. It took about 10-15 miles driving in city and highway traffic to complete.
Is your new windshield clean in front of your camera? A few weeks ago I had some bird crap that wouldn't wash off with the wipers and I couldn't engage FSD until I cleaned it with Windex.