You could panhandle for ten the bucks. OTOH, no company that expects a person to read or send an email, or do any other internet-ish thing can expect their employees to subsidize their business while on a business trip.
My company pays for me to have tethering on my iPhone so I not really supposed to also expense internet at a hotel. Of course this is fine for doing work stuff like email, but when you're in a hotel for 4 days it's nice to have Netflix, which obviously is not ideal on a tethered cell connection.