All hope is not lost about my I'll feelings toward United Airlines. I stupidly left a Chromebook in the seatback pouch exactly one month ago when I arrived at Puerto Vallarta. Goodbye Chromebook.
Today I received an email from United telling me they ACTUALLY FOUND IT!
They're holding it for $20 ransom, but I do get "miles" on it since I paid for the return on my United card. At least I can now fly to Mexico on Southwest now!!