stolen keys

[HiImBrian]

My dad was at the fitness center in Mound the other day and somebody broke into his locker and stole his keys. His ID was on the key ring, so somebody could easily find out where we live and which car is his. We are already getting our locks replaced on our house, and my dad was planning on getting new locks for his car, but that'll rob him around $1000. Just thought I'd check if you guys knew of a different alternative. He figures since somebody at the club stole his keys, they know his car will be back there eventually, so they can just steal that while he's working out. Any ideas instead of just replacing all the locks on the car?