Panel 1: We remind ourselves of how long it was since Lynn took her driver's test when Mike wants a re-do of parallel parking. Also, this is probably wish-fulfillment because Brutally Strict Guy probably told her that the test was over way back in the late sixties.
Panel 2: As he does something he's not actually allowed to do, he blames his absent-mindedness, tunnel vision, blanking out on the course material and lack of experience on Martha making baffling noise about how Jason seemed more attentive.
Panel 3: Hilter feeds him a straight line by testily pointing out that he's three feet from the curb.
Panel 4: Mike thought-bubbles that he's also a million miles from the G2 he isn't going to actually get for another year actually.
Summary: As I keep saying, he'd be just as underprepared and overconfident if Martha was willing to accept more mistreatment and refusal to understand who she is and what she wants but he won't admit it.