I imagine most of this has probably been said above, but haven't the energy to read it all!
I suppose you're not keen on the dawn chorus, the church bells or cockerels crowing either?
I assume you live in the countryside?
Horse poo, unlike dog or cat poo is organic, will do you no harm and doesn't smell too unpleasant.
So you are riding along on your 16h horse - are you expected to get off when your horse has a shit? Of course, you would need to be carrying a shovel and a bin bag or two, just exactly how are you going to manage that? Ok maybe both reins in one hand and the shovel in the other - but that could make it unsafe for horse, rider, pedestrians and drivers as you wouldn't be fully in control 'just in case'. Ahh .... and yes, of course you will be popping out to hold said horse whilst the rider is shovelling up the shit .... hope you like horses? Particularly the slightly flighty ones that will do a bit of a dance when the bin liner gets caught in the wind. Then you would also need to be there to help the rider back on, unless of course you are providing a mounting block at the end of your drive? It's not good for the horse's back for the rider to keep getting on without a block.
I think the easy answer is for you to move to a city!