When the Border Patrol officer removes the faxed photo of Deron McBee from the clipboard as Zigman tries to cross into Mexico, the wanted notice underneath states in part: "All this stuff is suppose to be in Spanish. However, the person who usually translates for us is on vacation, so just act like this is in Spanish."
The website that Veronica (Kristen Bell) visits in this episode, Pryingeyez.com, redirects you to the UPN/Veronica Mars page.
Both Sam Huntington (Luke) and Aaron Ashmore (Troy) went on to play the character "Jimmy Olsen" in different adaptations of the Superman comics. Huntington portrayed Olsen in the feature film Superman Returns (2006) while Ashmore took over the role of Olsen on the small screen in Smallville (2001).
Sam Huntington (Luke Halderman) also appeared in an iZombie (2015) episode, Brainless in Seattle, Part 1 (2018). Rob Thomas created both Veronica Mars and iZombie.
At 23:23 when Veronica says "... some of that voodoo that you do so well", she's quoting a lyric from Cole Porter's "You Do Something To Me" (1931).