Two Infallible Proofs
Evidence 1) She says she called on the day the electronic fuel pump was repaired, this was May 30.
Evidence 2) She says when she called to check on the electronic fuel pump, there were two, three white Jeeps there. Earlier in her statement she says "if it was Rick's Jeep that was gone", implying it might have been one of these other people's Jeep that actually disappeared on May 30, not the Ricci's Jeep. She's implying the Jeep that disappeared from Moul's lot on May 30 may have been the Jeep of a different owner.
She did NOT say what day she called.