Your vet may not give you a tranquilizer if Georgee is out of doors, as you don't know where he might decide to lie down. Definitely call though and see what your vet can do for you. Use of them indoors is very standard for vet visits and the like.
Are you going to try to use a humane trap or to lure him into a carrier and shut the door?
Are you going to try to use a humane trap or to lure him into a carrier and shut the door?