I came across this in the Florida Bicycle Law Enforcement Guide.
This law states that you do not have to submit to a brethalizer test, however you may have to submit to an roadside sobriety test, like walking the line or touching your nose with your eyes closed, or even following the cops finger without moving your head, and possibly counting backwards from 100. (typical roadside sobriety tests..)
*NOT TO DRIVE UNDER THE INFLUENCE
● It is unlawful to operate any vehicle while under
the influence of alcohol or drugs [§316.193].
● The requirement to submit to a breath test
[§316.1932] does not apply to a cyclist, since con-
sent is deemed to have been given only by a person
with a driver's license who is operating a motor
● It is unlawful for any person to possess an open
container of an alcoholic beverage while operating
a vehicle, or while one is a passenger in or ON any
Also, after reading FS 316.1932, I found that you do not have to take any other type of test either, such as urine, or blood.