Any suggestions on how to best use a Type-K bead thermocouple to measure temp on a sweaty pipe?

I'm trying to use on my vehicle, but figure you've got a similar issue trying to measure the HVAC lines. Chrysler manual says to use a Clamp-On Thermocouple, but i'm too lazy to go looking for another expensive gadget, so I want to use my plain vanilla general purpose bead probe.

Any and all ideas appreciated.