pistol shrimp question

[eaglesrx]

Okay, not sure which forum is best.

I had to move around the rock work of my tank. I didn't see if my randal's pistol shrimp was in the same spot or had a new burrow. I'm afraid that I may have placed a big rock on top of him. I don't think I placed it on his burrow, but it's tough to tell. Do you think this would kill him or would he be able to burrow his way out?

Thanks!