They were driving to CalTech via Euclid Ave. I lived on Euclid Ave. near CalTech for a fair number of years. That wasn’t Euclid Ave on the screen. If Leonard were watching the show, he’d be upset at the inaccuracy.
There was a public service ad saying “If you feel the need to hit or verbally abuse someone, it’s time to get help.” And my immediate thought was “no, I can take care of that myself.”
Oh, and it takes a lot to weird out the CalTech cleaning crew… certainly a lot more than someone being around in the wee hours.