Exit Strategy UX

So, I thought it was pretty well established that EXIT signs (in the US) use red capital letters, sans serif font.

Apparently not.

If you search for "exit sign," the Google returns "About 16,500,000 results."

Narrowing the search to images produces: "About 3,600,000 results." Here's a screenshot from this morning:

What's your exit strategy?

Do you communicate your calls to action clearly, in standard and instantly recognizable ways?