@tripleteens - try one last thing: contact the College of Engineering and ask if there are any Student Ambassadors who are available and who can take your student around privately on the weekend. It’s a long shot, but worth asking, as those Ambassadors are there for that very reason (take prospective students on tours). Some may have their own keys to access locked buildings/labs. At the very least, these students could talk with your son. Fall break is today and tomorrow (Oct 29/30), and the weekend, of course. Campus will be quiet, but a ghost-town like it is on, say, Thanksgiving. There are a lot of Halloween activities planned on campus. If your son is interested in aero, PM me, and I can see if my son is available to speak with him.