‘Run for the border’ article

While it may be a typo, it states [i]”You pay $13 in an exit tax”[/i] and from everything I have read, this tax is only $7. Possibly the author can confirm the price for others who must cross to renew their tourist status?
Please, also ask, if the photo of armed soldiers was taken by a member of the group at this particular border crossing or is this a ‘stock photo’, so others can be ‘prepared’ to see this?