From Round Rock you'd likely go IH35 to 195 on the north side of Georgetown, and then 195 to Killeen. If you're working normal hours you'd be going against the traffic for a good deal of that.
After analysis, unknown prints are compared alongside the known prints. The unknown print is the print found at the crime scene, and the known print is the print of a possible suspect. First, the class characteristics are compared.
If you believe it was stolen, then you should report it to the police. The problem with dusting for prints is that you need to have a surface (smooth non porous) available to dust for prints. Just locating prints in the vicinity is not enough evidence to arrest someone.