score:7
Call the airline, get yourself connected to the baggage office at LaGuardia, and explain the situation: they will be able to help.
Edit after comment from Zach Lipton: Perhaps try the airport operator at (718) 533-3400 and ask if they can connect you to the United baggage office.
Upvote:2
If it was still in the carousel area then he could pick it up as the baggage claim area is generally not secured in the USA and rarely are tags matched against bags.
However, if it was pulled off by the baggage claim office and stored in their secure area, they will often ask for the baggage tag or for your ID so that they can match the bag with you. In this case, itβs best to phone ahead and let them know hubby is picking it up for you.