Panel 1: We see Elly being what she sees as being a responsible parent and what everyone else sees as being a nincompoop who lives to embarrass her children in front of their friends. This is accomplished by reminding her that her room is a mess and the too much laundry that's too much laundry because Elly ain't doing it right needs folding.
Panel 2: Also, Farley needs brushing and the volleyball net that wasn't used because Lynn has no idea how volleyball is played has to go next door.
Panel 3: Finally, her bike wasn't put away, she didn't turn off the TV and her socks are still in the stairwell.
Panel 4: As they walk to the store, Liz explains that after Mom comes back from a trip, she has to catch up on her nagging.
Summary: This could have been handled without a damned audience but Elly just can't see that. It's almost as if she thinks that if Liz isn't publicly shamed, she's hurting her poor mother by asking her to take second place to children. Oh, wait. She does think that because she's a narcissistic twat.