if you have no cell service then you either have a phone plan by a really crappy service provider or are out somewhere far out from the city and suburbs and should in that case have a spare. plus who doesn't have a cell phone these days?
unfortunately them not getting to you in a reasonable amount of time is what happens at times, once i had to wait 2 hours :smileyPC:
if you're on a roadside assistance membership plan you don't have to pay anything unless you request something be done outside of the plan you paid for.
I heard horror stories about that, usually I request to get a flatbed just to lessen the f*ck up's