One would think they can, but it does not look like they can be removed and reused. That being said, you would have to remove the socket to rechrome a light. Way back when our Sports Coule was a daily driver I did replace the socket with an aftermarket replacement to pass an annual inspection. However, it was nothing like the original. Maybe Jasen has some experience with this.
Speaking of inspections, I needed one so I asked the local station to check it out when doing the inspections. They fixed the issue I was having (bulb not sitting properly in the sockets - loose), now they work better than ever. Best $35 repair I have done.