When Clark and Chloe make out in the Talon, after Chloe strips him and the red kryptonite falls out, Clark comes to his senses, immediately puts on a coat and zips it up. However, when Lana comes in, he zips it up again.
When Chloe asks Pete to make a stop, her hand is on his shoulder; when he asks where, it is gone; when she says the Talon, it is back.
At this point in the story the state would have seized that land the caves are on and made it into a state park and/or Indian reservation. No matter how rich you are you can't buy a cave full of Native American paintings because it still belongs to the native people who lived there.
How did Clark manage to subdue Pete and Chloe after catching their car? Pete still had the Kryptonite (that he used to punch Clark outside the Talon) in his pocket, was conscious and as unlikely to submit to Clark's attempt to bring them to the hospital as before.
It is odd that even under the parasite's influence, Pete does not show any sign of jealousy at Clark and Chloe making out right next to him, despite that he has expressed affection towards Chloe subtly multiple times...and not-so-subtly when he is under the influence of the Nicodemus flower, which has similar effects to the parasites.