I carry a small 12v compressor underneath the seat in my TV. It will inflate the TT tires to 80psi ...eventually... It is mostly for my bicycle.
I have a larger 120v compressor I seldom carry with me. I figure if I must I will dismount the tire and head to the nearest town, extending my trip by a day.
I am pretty conscientious about checking air pressures daily and spares weekly, as well as crawling around underneath the rig with a telescopic mirror and flashlight, checking all the dark nooks and crannies for incipient problems.
So I have not been surprised by sudden tire problems, save one blowout from an unavoidable road hazard. (knock on wood).