So, if one was arriving at T4 and planning on a taking a cab or an uber to leave LAX, could the quickest way now be to go to the arrivals level, grab the very first hotel shuttle that comes along, then either arrange an uber from that hotel, or grab a taxi from there? You'd avoid LAXit, and airport fees...

Does anyone see a problem with this method?

In all the hotel shuttles I've taken around the world, I've never been asked to show reservation details...

Edited after my post was moved from a thread about Hotel Shuttles to this one, and after the post I quoted and was replying to was deleted:

I had initially quoted a post that said the traffic on the upper level was now very light, and it was that data point that led me to consider the use of hotel shuttles