I brought it in today. Three different techs, pulled, twisted, fiddled, scratched their heads etc...and could not figure it out. I stood there in the bay the whole time and watched all their moves and listened to all conversation. The tech who did the job (a master tech) got the comeback. Then he unbolted the valve cover and was able to get a flexible, lighted scope (think colonoscopy) into the very limited opening allowed by the small amount of play in the dipstick and said the galley looked fine and no obstructions that he could see, therefore the issue had to be further down. At this point he was resigned to pulling the oil pan. So I left the bay and a shuttle driver took me home. Half way home, the driver gets a call from the dealership and they say come back, they got the dipstick out. Alex, the master tech who did the job and was about to redo the job said less than a minute after I left, another tech came over to look at the problem, he grabbed the dipstick and it "just pulled right out". They said just to be sure it doesn't happen again, they gave me a different "used" dipstick and they allegedly showed me the original one that was stuck. There were no witness marks on the cable or tip where something had been pinched or stuck and there was no gasket goop residue on it. From the time I walked away from the truck to the time we got the phone call was about 10 minutes, and then another 10 minute return trip. It could have taken 8 minutes for the tech to tell the service advisor and then the service advisor to track down the cell number of the driver. Or maybe the delay in making contact was to "clean up the crime scene". They sent me away with everything is fine, no problem. I insisted on paperwork for the visit explaining what had occurred so that there is an established history in their system of the dipstick getting stuck and noted by customer with a phone call within 24 hrs of receipt of the vehicle after an oil pan repair and then customer bringing vehicle to dealership the next day the dealership was open. I still have no idea what happened and the dealership is saying the same, whether they know more than they are telling me or not. I don't think there is anything else I can or could have done.