Hello Boihoittue52
Welcome to the SBB Community.
Sure, this is possible if the person who is picking up your stuff holds a power of attorney document signed by you and, if possible, a passport or ID document copy from you.
As we are a customer support forum run by volunteers and not the official SBB Customer Service, your positive feedback is not seen by the relevant team. You may transmit your praise using this form, it will be of great motivation to them:
https://www.sbb.ch/en/help-and-contact/customer-service/praise-comments/praise.html
For more information on the claim of of lost items, see:
https://www.sbb.ch/en/help-and-contact/lost-found-office/questions-answers-sbb-lost-found-office.html
Kind regards,
Roland