SAN ANTONIO, Texas -- There is strong evidence Monday that at least for one night on the run, Elizabeth Johnson was not alone with her baby Gabriel in San Antonio, Texas.

• Watch: Pizza Deliveryman Offers Clues In Baby Gabriel Case

Johnson sits in a Maricopa County jail on charges of kidnapping and custodial interference in connection with her cross-country trip. Her son, Gabriel, disappeared the day after Christmas in Texas.

Tabor Morris, a pizza delivery driver at Papa John's, says he delivered food to Johnson while she was staying at the Homegate Hotel.

“She was real skittish, she kept the door closed. I think she gave me a $5 or $6 tip. Really nice lady. I think that’s why I pretty much remember her,” said Morris.

She may have soon slipped his mind if not for the flier posted in the restaurant. He produced a receipt to CBS 5 News from Dec. 21 with the name Elizabeth and her room No. 150.

“She pretty much handed me the money and didn’t let me look in the room. Didn’t let me look or anything like that. I could tell something was wrong. She was real skittish acting,” said Morris.

A second pizza order three days later may better help find Gabriel. The receipt, provided by Papa John's, also lists the name Elizabeth and room 150, but on Dec. 24, she ordered two pizzas, a medium and a large. They had a different assortment of toppings and seem to strongly suggest she was not eating alone.

The driver who delivered that order no longer works at Papa John's, but Morris said he wants to help track him down. If that second driver saw someone with Elizabeth, his testimony could help break the case.

“She’s crazy. The guy that’s looking for his kid, I understand that. That’s why I want to help him out however we can,” said Morris.

CBS 5 News passed along this new information to Gabriel's father, Logan McQueary, and he immediately called San Antonio police.

McQueary has a meeting with investigators Tuesday, and they asked him to bring the receipts.