I haven't met Fumar (we non-confrontational types with dogs don't need the stress at our ages
, but maybe he is mellowing? Actually, I secretly suspect he has multiple dogs (more than the allowed 2 pets), and his posts are just a smokescreen . . .
Back to the subject - we always take (at least when we remember), a plastic container of ice on golf cart rides - it soon melts, although our dog - an old miniature poodle - likes to lick the ice also. We found out by accident that he will also drink/lick from this on car trips - he will refuse regular water, and long trips were really stressing him out until we discovered this. You can get another cup of ice at McDonald's on the way or bring some in a cooler.