Keep in mind, I am a casual Yooka-Laylee player, so I don't know the lingo runners may use.

As the helicopter, I was delivering Munch-A-Lot when the time ran out. I hit B so I could try to find the storage room without a time limit. When I respawned, however, all of the floor was gray and had no collisions. You could travel freely into various loading zones. For example, I accidentally flew into an invisible trigger and got 6 free tokens. This could be a huge time save if anyone can preform it consistently.

After a couple attempts, I was able to replicate it. While delivering Much-A-lot, I flew into the gray pipe next to the entrance. When the time runs out, either press A to deliver Munch-A-Lot or B to cancel the mission, voila! No collisions. I was able to deliver Munch-A-Lot while there were no collisions, so I can't record me preforming the glitch, but I did record what the glitch does to the world. Unfortunately, going into a loading zone will deactivate this glitch, but it shows signs of promise.

Video 1:

Video 2: