Dometic AC shroud screws stripped

[RMcNeal]

I was on the roof yesterday and decided to do our AC cleaning for the first time. All of the screws holding the plastic shroud on top were so tight that I nearly stripped every single one of them. Well only one did get stripped and now I can't get it out. Any ideas on how to get it removed? I have limited tools with me and I really don't want to drill it out since I don't have a way to replace it.
I was thinking when I get home to use a Dremel and put a straight slot in it for a regular screw driver. But in the mean time....