Continuity mistake: When Allabaster is chasing Hank in his car, he loses the front left hubcap from his car. Just as they go over the speed bump if you look at Allabaster's car when it is in the air for a brief second you can see the hubcap is back on the tyre (more visible in slow motion). Later we see the tyre again and the hubcap is off for the rest of the scene.
Continuity mistake: When Peggy & Hank are talking about Tammy whilst in bed, there is an outside shot of the house with light streaming out of one of the windows (the master bedroom). Yet when we see Peggy & Hank inside their room the blind for that window is down, making it impossible for the light to stream out of the window like it does.
Continuity mistake: When Peggy, Hank, and Tammy are in the car and Peggy says "We all make mistakes", her lipstick is a duller, orange shade, then it goes back to being red.
Continuity mistake: When Peggy and Hank are looking the mirror, as Peggy says "We look like a couple of movie stars", her hair is its normal reddish-brown color, but her reflection in the mirror has lighter, more dull brown hair.
Answer: Jeffrey Boomhauer is a Texas Ranger as can be seen in the final episode at the end when he sets his wallet down, it flips open revealing a Texas Ranger badge.