Leave it on, Lizy! I assume you're somewhere here in the Denver area! It's obviously too late to do anything tonite anymore anyway, but the temps tonite are supposed to go down into the mid-teens, and snow actually helps to insulate plants. By Saturday most of the snow should be melted off again, and that's when you'll find out what, if anything, might have actually been damaged. Many/most of the "spring bulbs" can take cold temps and be fine, but if you have things like lilies coming up already, they might have frozen in the last couple nites. Only time will tell! I've had my lilies and a few other things covered with big pots for the last few nites. Will need to take them off tomorrow when the sun's shining on them, but they'll be going back on tomorrow nite for sure, and possibly Saturday nite too. By Saturday or Sunday you should be able to tell for sure how much damage you have--if any. Just "bending over" won't cause serious damage to most things, it'll just be the things that are "frost sensitive" that could be damaged. If any of the "flowers" you're talking about are daffodils, they have hollow stems and the weight of the snow will probably have them bent beyond repair. Another one I know that can be damaged is hyacinth flowers that are already open--the stems on those can freeze and not come back--it that happens just cut the flowers off and leave the foliage die down naturally like you normally would--and they'll be back again next year.

Good luck! I hope most or all of your plants and flowers are ok!

Skybird