Exporting Car (Lienholder Letter Question)

[Love-Buf-Wings]

Lienholder gave permission in a notorized letter to export car into Canada for the loan term. The US Customs Officer rejected the letter because the word "export" was not in the letter. Question: is this common practice or differing discretion?

Website: "Where title evidences third-party ownership/claims. If the used, self-propelled vehicle is leased or a recorded lien exists in the U.S., in addition to complying with paragraph (b)(1)(i) of this section, the provisional owner must provide to Customs a separate writing from the third-party-in interest which expressly provides that the subject vehicle may be exported. This writing must be on the third-party's letterhead paper and contain a complete description of the vehicle including the Vehicle Identification Number (VIN), the name of the owner or lienholder of the leased vehicle, and the telephone numbers at which that owner or lienholder may be contacted and must bear an original signature of the third-party and state the date it was signed."