I just got a call from my local delivery center (after I texted and asked for an update again). The rep I spoke with was very nice, and gave me some info. He said the major hold up in PA is that the DMV is closed with no online option for issuing tags. He also said they (Tesla) are unable to issue the temporary tags in our state. The delivery center was trained on touchless delivery, so they are ready to go once the DMV opens back up. They have a company call scheduled for this Wednesday which will give them an update on what the DMV's decision is to re-open, or open up some form of online processing. The rep said he does not have high hopes for them to open up in any form though. He also said they are sitting on about 200 cars waiting to be delivered (not all Y's, just in general), so he suspects if they can't get access to the DMV, and touchless deliveries aren't possible, all of Q2 (whenever things do eventually open back up) will be just deliveries back to back as many as they can cram into a day.
Might be a similar situation for NJ.