Rude can't bring himself to be upset about it when A: he used to do similar things in his own youth, and B: the car wasn't his technically. Perhaps if they were able to to start and drive out of the parking garage to take him home he might be a touch more possessive about the parts.

"Be careful." He said in response to Ekko's minor collision, taking a few steps closer to look at what parts he was taking. They almost look shiny and new which didn't shock him based on the niceness of the interior. "What are you going to use all of that for?" Rude leaned against one side of the car casually, just watching Ekko for a moment longer.