When in doubt, play it safe.
I had a similar thing happen just last week after returning from a trip. Knocked my Lemo 2 right off the desk onto a metal support. Broke a thumbnail sized piece yet it didn't leak. While I was SO tempted to just keep vaping, I decided not to chance it and just removed the glass tank and ordered a replacement from FT. Figured a few dollars for peace of mind and no further hassles is worth it.
Hopefully you have a backup atty or rda in the meantime, if not, highly recommend having one.