By CBSLA Staff

PRIMM, NEV. (CBSLA) — Some Californians who enjoyed a long holiday weekend in Las Vegas are coming home with an unwanted and expensive souvenir – a ticket for trying to bypass heavy traffic by driving on the shoulder.

With the 15 Freeway near the California-Nevada border jammed for miles most of the day Monday, and Nevada Highway Patrol officers were ready for drivers who got fed up with the backup.

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NHP gave drivers ample warning of the impending traffic rush, at 9:15 a.m. Monday, warning drivers with a tweet, “Don’t drive in the shoulders.”

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But at least two California drivers, whose license plates were obscured by authorities, were caught trying to use the shoulder to get past traffic.

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Las Vegas is among the most popular destinations for Southern Californians looking for a quick weekend getaway.