removing seatbelt torx head bolts

[cdub2010]

Im trying to remove the seatbelts in my '91 crew cab and I have broken 3 torx bits so far, 1 with an impact and 2 with just a 1/2 ratchet and breaker bar. The bolts have hardly budged at all, they just make an erie creaking sound. I would hate to have been the guy who had to torque them down on the line. I need them out to put new carpet in the crew cab. Cant use heat as they still have the seat belt plastics on them. 8 bolts total twice the fun as you regular cab guys.

I cant remove them so.... Can these things be drilled out? Do I really want to try? Should I just spray the floor with bedliner and give up on cleaning up this pig?