No, but you can use your Mother's card for the day.
No guest pass at Costco there is a pass you can use at Sam's Club in Woodbury but I believe it is a 5 to 10% up charge on the prices but they will let you in the store the Sam's Club in Woodbury has just been remodeled so it's got some really nice food sections for meats and bakery Goods checkout Lanes Etc check in at the customer counter and they'll get you a free day pass at Sam's If if your mother is a member just use her card at Costco
As long as your mom is with you, she can accompany in Costco.
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