Dale you must have all your Boy Scout badges. Good to have a pump with you. I just trust I will be able to get back to the vehicle, put in a new tube and find a gas station with a compressor and a GoodSamaritan willing to pump it up for me... Hasn't happened yet. <knocks on side of head>
my worst-case scenario is handcycle. I rip around un-burdened because even with a full complement of tools I'd still never get the long-stem presta valves out with my somewhat gimpy fingers. Never leave home without my cellphone and some cash.
Maintenance goes a loooong way, though.