suggestions...
Lose the glue traps... have seen happen and a PITA when they do rip limbs and/or their skin off. So stick w good old snaps.
Now:
if possible in your carport, leave windows open overnight... and put traps around car on ground OUTSIDE. They will come out...
If not, put a trap in battery tray area, one in each footwell, and trunk. 4 will be plenty. Put the traps, especially in footwell either on your floormat upside down or better yet in a low profile box w at least 4" space on all asides around trap. Boxes like ones a case of barley tea comes in are perfect so you might have to do some "research" first ;-) Once you exterminate one, replace w different box - think they're decent smelling death... makes clean up/removal a snap as all is contained.
Now #1 piece to your success:
Bait w/
peanut butter. Those little you know what's love the stuff. I've got a 1000% track record when baiting w PB w/in 48hours anywhere - basement, attic, garage, crawl space, drop ceiling, etc. Just a pea sized smeared dab... stays in place and they have to crawl onto trap to get the cheese... err PB... and meet their maker.
Goo luck
If can't