RE: wheels
Yup same thing happens on pretty much all my cars i just stick 1 end of my needle nose pliers throught the opposite side of the rim and poke it out. If its only happening when its really hot then im guessing the plastic is expanding a little bit with the hot weather and when you take it in to clean it the plastic is cooling back down and going back to normal size or maybe a little smaller than normal size hence the hub sticking in the wheel.